The nuclear option: What a war with North Korea would look like

When Barack Obama left office, he reportedly told incoming president Donald Trump the most urgent challenge he would face was that of North Korea.


North Korea has been working on developing its nuclear capabilities and intercontinental ballistic missiles (ICBMs).

It aims to develop the capability to mount a nuclear attack on the mainland United States.

The capability is necessary to defend the country from US aggression, the country says. It’s been pursuing the technology for more than 50 years.


North Korea claims it already has the ability to shrink a nuclear bomb onto a device small enough to fit on a missile – but it doesn’t yet have a functioning long-range projectile.

The US is determined to stop the rogue state from developing such capabilities, with the Trump administration ratcheting up diplomatic and military pressure on the country.

America is also continuing a cyber-campaign aimed at sabotaging North Korea’s capabilities, and has begun deploying a missile defence system in South Korea.

President Trump has said a potential war with North Korea could kill millions, and is counting on China to exert its influence over North Korea.

Should their efforts fail, the United States has refused to rule out a military strike on North Korea, with the Pyongyang administration also threatening potential pre-emptive strikes.

Military action from either side could trigger a potentially catastrophic conflict.

A man watches a TV news program reporting about North Korea’s missile firing with at Seoul Train Station in Seoul, April 29, 2017.AP Photo/Lee Jin-man

The decision to strike

The United States considers it relatively unlikely that North Korea would risk its survival by provoking the US with an attack on the country or its allies.

America’s nuclear weapons and sophisticated military function as a strong deterrent.

But heightened rhetoric on both sides has North Korean analysts worried.

Jenny Town, Managing Editor of 38 North and Assistant Director of the US-Korea Institute at the School of Advanced International Studies at Johns Hopkins University, says increased tensions means there’s an increased risk of errors being made.

“It’s basically a high-risk game of chicken being played between Trump and Kim Jong-Un,” Ms Town told SBS News.

“The higher the rhetoric gets, the higher the risk of miscalculations.”

USS Carl Vinson has been redirected to the region, with the aircraft carrier involved in a joint missile defence drill with the South Korean navy.

An aerial photo shows the nuclear-powered aircraft carrier US Carl Vinson sailing offshore of Nagasaki Prefecture on April 29, 2017.The Yomiuri Shimbun via AP Images

Malcolm Davis, Senior Analyst in Defence Strategy and Capability at the Australian Strategic Policy Institute, says that if North Korea keeps pursuing nuclear missile technology, it could push the United States into a first strike.

“The challenge is going to be in 18 months’ time, as North Korea gets very close to being able to put a nuclear warhead on an ICBM,” he told SBS News.

“The US would then be forced to act to prevent North Korea from being able to threaten the continental United States.”

Mr Davis says the development of a missile capable of delivering a nuclear bomb to the US mainland would be an intolerable red line for the superpower.

“We may not be able to stop it without fighting a major war on the peninsula, and we just have to get ready for that eventuality,” he said.

US & South Korean marines participate in an annual Combined Joint Logistics over the Shore exercise against a possible attack from North Korea, in Pohang, 2014.EPA/JEON HEON-KYUN

Ms Town is more wary.

“Having an ICBM is a big deal, but at the same time, our partners in the region would feel like the red lines are already crossed,” she said.

North Korea already has missiles capable of reaching South Korea and Japan, potentially with a nuclear warhead.

Ms Town is hopeful that diplomatic and economic pressure will bring North Korea to the negotiating table.

If development of an ICBM is a definitive red line which would trigger a major military response, President Trump needs to make that unambiguously clear in order to provide deterrence, Ms Town says.

It’s advice President Trump doesn’t appear to be taking.

“I don’t know. I mean, we’ll see,” he said in a recent interview when asked if North Korea risked a military strike if it continued nuclear tests.

America attacks

There’s no knowing exactly what a US first strike on North Korea would look like, but analysts speculate that it would have to be a major surprise attack in order to minimise the potential for retaliation.

While the locations of North Korea’s naval and air forces are relatively easy to target, the country also operates a fleet of hundreds of mobile short- and medium-range missile launchers, according to a 2015 Pentagon report.

The United States’ Defence Department believes the on-road and off-road missile launchers – the type proudly shown in North Korean military parades – would be capable of targeting sites in South Korea and Japan.

“These are the kind of things that they put in place to ensure that people have to think twice before trying to engineer some kind of pre-emptive strike or regime change, as the North Koreans have seen in other countries,” Ms Town said.

Having witnessed the overthrow of regimes in Iraq and Libya, North Korea remains committed to its ballistic missile force as a form of deterrence, Ms Town said.

Off-road missile transport is paraded across Kim Il Sung Square during a military parade on Saturday, April 15, 2017, in Pyongyang, North Korea.AP Photo/Wong Maye-E

The missiles are within striking distance of major, global cities such as Tokyo and Seoul, as well as a number of US bases in the region.

The Pentagon has more than 73,000 personnel deployed in Japan and South Korea.

For its part, Australia has thousands of tourists in the region, and thousands more ex-pats who live there longer term.

While the US may have the technical capability to destroy the mobile missile launchers, pinning down their precise whereabouts at any one time is a challenge.

In reality, a number of short- and medium-range missile launchers would likely survive any initial attack, Mr Davis says.

“We may not be able to have the opportunity to take out those missiles before they’re launched, which means we then have to rely on missile defence to actually shoot down those missiles,” he said.

“And missile defence is not 100 per cent effective.”

Nevertheless, the US has begun installing a Terminal High-Altitude Area Defence (THAAD) missile defence system in South Korea, elements of which may be operational within days.

The first elements of the THAAD system arrived in South Korea. Monday, March 6, 2017. US Forces Korea

North Korean retaliation

Whatever the scale of an attack, analysts say the response from North Korea would likely be swift and unforgiving.

Ms Town says that any type of military strike would spark “a kinetic response, which could very easily escalate into war.”

“It would get really ugly,” she said.

In addition to missile capabilities, the United States also suspects North Korea of maintaining a chemical weapons program, with a stockpile of nerve, blister, blood, and choking agents.

The country also has a large, responsive, conventional land-based military – much of which is positioned to attack South Korea, and which the Pentagon believes could be activated with little or no warning.

An undated photograph released by the Korean Central News Agency (KCNA) on 26 April 2017 shows a combined fire demonstration of North Korean artillery. EPA/KCNA

The South Korean capital of Seoul – and its 25 million residents – are just 50km from the North Korean border.

“The carnage would be horrendous,” US Senator John McCain, Chairman of Senate Armed Services Committee, recently told CNN.

Mr Davis says any attack on North Korea is likely to draw “massive retaliation”.

“In some of the worst case scenarios we’re talking massive war on the peninsula. We’re talking North Korea unleashing massive artillery bombardments at Seoul, launching chemical biological, perhaps even nuclear weapons against South Korea and Japan,” he said.

“So we have to be prepared for that potentially.”

South Koreans watching a television news broadcast at a station in Seoul, South Korea. North Korea has test-fired an unidentified type of ballistic missile.AAP

China’s response

For years, China has provided a level of economic and military support for North Korea.

It has done so as a result of its own strategic calculations, says Professor Pei Minxin, an expert in US-China relations.

“For the rest of the world, the North Koreans appear to be irrational, crazy, aggressive. For China, North Korea is a very valuable piece of real estate,” he said.

“It provides a security buffer between the US and China.”

Without North Korea, America’s 28,000 troops in South Korea would be sitting right next door to China.

A Map of the region showing China, North Korea, South Korea and Japan.Google Maps

In 1950, the US and China were drawn into a devastating proxy war on the Korean peninsula.

But while China has been irked by the US maneuvering an aircraft carrier into the region and establishing a missile defence system on its doorstep, it’s not certain the two superpowers would go to war over North Korea.

China’s support of its rogue neighbour has its limits, Mr Davis says.

“I think that they think that China is, to a degree, their security guarantor, but they probably recognise that China is not going to end up in a shooting war with the United States over North Korea,” he said.

“China would have the military option to intervene into North Korea, but the question is, would it do so? I suspect it won’t, I suspect it would keep its forces on its side of the border and just wait to see what happens.”

But war would have a significant impact on North Korea’s northern neighbour.

The fall of the regime would see streams of refugees flowing into China, analysts told SBS News.

“And in the ultimate worst-case scenario, if North Korea were to use nuclear weapons and the US was to respond with a nuclear strike, then you would get fallout drifting from North Korea into China,” Mr Davis said.

“So the Chinese don’t want war in the peninsula.”

Chinese President Xi Jinping waves to the press as he walks with US President Donald Trump April 7, 2017.Getty Images

Avoiding catastrophe

While analysts may differ on the likelihood of conflict and the strategies to prevent it, there is universal agreement that in a war with North Korea, there is unlikely to be a ‘winner’.

The US risks tens of thousands of troops in the region, South Korea and Japan risk attacks on their major cities, the North Korean regime faces oblivion and China would have to deal with a humanitarian and strategic catastrophe just two hours’ flight from Beijing.

But while no country has an incentive for conflict, the strategic calculations of North Korea and the United States may prove irreconcilable.

“The real solution to this is for the US and China to somehow work together to remove this threat,” Mr Davis said. “But the question is, how do you do this without risking major war on the peninsula?”

Much of the situation is uncertain because leaders on both sides of the stand-off are unpredictable.

“It is a chess game. I just don’t want people to know what my thinking is,” President Trump said in a recent interview.

“Eventually, he will have a better delivery system. And if that happens, we can’t allow it to happen.”

US Secretary of State Rex Tillerson speaks during a Ministerial level Security Council meeting on the situation in North Korea, April 28, 2017.AP Photo/Mary Altaffer

US Secretary of State Rex Tillerson has warned of “catastrophic consequences” if the world fails to stop North Korea’s military development.

Ms Town says North Korean leader Kim Jong-un’s pursuit of nuclear deterrence is driven by rational strategic calculations, and hopes that negotiations can bring the situation back from the brink.

Mr Davis is not so convinced.

He says the young, inexperienced Supreme Leader cannot be counted on to think logically, with his escalating rhetoric driven by a desire to consolidate power internally.

“There’s nothing the outside world can do about that, that’s purely internal North Korean politics,” he said.

“There may not be a peaceful solution to this.”


Ten missing after US warship collides with oil tanker off Singapore

The guided-missile destroyer USS John S.


McCain collided with the merchant vessel Alnic MC near the Straits of Malacca in the early hours, the US Navy said.

“Initial reports indicate John S. McCain sustained damage to her port side aft,” it said in a statement as the ship headed to port in Singapore.

“There are currently 10 sailors missing and five injured… Search and rescue efforts are underway in coordination with local authorities.

“The extent of damage and personnel injuries is being determined. The incident will be investigated.”

Four of the injured sailors were evacuated from the warship to a Singapore hospital by helicopter with non-life-threatening injuries while the fifth did not require further medical attention, the navy said.

0:00 US Navy ship collision ‘could have been prevented’, says security expert Share US Navy ship collision ‘could have been prevented’, says security expert

The navy said the destroyer was sailing under its own power after the collision with the Liberian-flagged tanker in Malaysian waters at 5.24 am as it headed for a routine stop in Singapore.

The vessel is named after US Senator John McCain’s father and grandfather, who were both admirals in the US navy.

McCain said in a tweet that he and his wife “are keeping America’s sailors aboard the USS John S McCain in our prayers tonight – appreciate the work of search & rescue crews”.

MT @US7thFleet: #USSJohnSMcCain – 10 missing and 5 injured. 4 evacuated by helicopter to hospital for non-life threatening injuries.

— U.S. Pacific Fleet (@USPacificFleet) August 21, 2017

President Donald Trump initially said “that’s too bad” in response to reporters’ shouted questions about the collision, as he arrived back at the White House after a holiday.

He followed up with a tweet: “Thoughts & prayers are w/ our @USNavy sailors aboard the #USSJohnSMcCain where search & rescue efforts are underway.”

0:00 ‘That’s too bad’: Trump on the Navy crash Share ‘That’s too bad’: Trump on the Navy crash

Malaysian Navy, Airforce and Maritime vessels and aircrafts deployed for #USSJohnSMcCain SAR. Pse pray for their safety pic.twitter长沙桑拿按摩论坛,/aFZ19IYpaU

— Chief of Navy – PTL (@mykamarul) August 21, 2017

It was the second collision in recent times involving a US warship after seven sailors died in June when the destroyer USS Fitzgerald collided with a Philippine-flagged cargo ship in a busy channel in Japan.

Air-sea search

After the latest incident on Monday, a major search and rescue operation was launched, with planes and vessels from Singapore, Malaysia and the US involved.

Singapore sent three tugboats, and four navy and police coastguard vessels while Malaysia – whose southern Johor state was close to the collision – deployed eight ships and said it was going to send aircraft to help in the search.

A US helicopter was taking part in the search and two other American aircraft were expected to arrive soon, the navy said.

#USSJohnSMcCain collided with the #AlnicMC; a merchant oil tanker pic.twitter长沙桑拿按摩论坛,/BGf1A1tCFL

— Strategic Sentinel (@StratSentinel) August 20, 2017

The ship involved in the accident is a Liberian-flagged tanker used for transporting oil and chemicals and weighing over 30,000 tonnes, according to industry website Marine Traffic.

In the June accident, the collision happened in a busy channel not far from Yokosuka, a gateway to container ports in the Japanese capital Tokyo and nearby Yokohama.

The dead sailors, aged 19 to 37, were found by divers in flooded sleeping berths a day after the collision tore a huge gash in the side of the Fitzgerald.

A senior admiral announced last week that the commander of the destroyer and several other officers were relieved of their duties aboard their ship over the incident.


There have been around 30 ship collisions over the past decade in that area, including a 2013 incident in which six Japanese crew died, according to the Japan Coast Guard.

The USS John S. McCain is part of the US Seventh Fleet, and its home base is Yokosuka, in Japan.

Wallabies display ‘unacceptable’: Speight

Wallabies players didn’t need a spray from coach Michael Cheika or any of their teammates to understand the magnitude of their Bledisloe Cup horror show, winger Henry Speight says.


The Australian team sat through a sobering video review session on Monday before resuming preparations for Saturday’s second Test against New Zealand in Dunedin.

It will take a turnaround of unprecedented proportions for the Wallabies to keep the series alive after Saturday’s stunning 54-34 capitulation in Sydney.

Speight, who contributed to the side’s defensive malaise with five missed tackles, said players were under no illusions as to how much ground they have to make up after one of the worst performances in recent memory.

“A lot of harsh truths didn’t have to be said,” Speight told reporters in Christchurch, where the team is training until Thursday.

“Us as individuals and us as players can be the harshest on ourselves.

“We knew that first half especially is a standard that is not acceptable and that in itself is a big reality check for us players.

“We didn’t need much of the coaches or much video for that be brought to face for us.

“It’s for us to take a bit more pride and take individual action and do whatever is necessary to fix that.”

Several personnel changes are likely for the clash at the indoor Forsyth Barr Stadium, with outside centre Samu Kerevi and debutant winger Curtis Rona in danger of being cut after sub-standard defensive displays.

Dane Haylett-Petty is expected to be available after missing last week with a bicep injury and will come into calculations.

Tevita Kuridrani is also a strong chance to replace Kerevi, who was rusty in his first match since recovering from the ankle injury he sustained while playing for the Queensland Reds in early June.

Mammograms from 40 save more lives: study

When a woman turns 40 is the optimal age to start having regular mammograms to reduce the number of breast cancer deaths, the findings of a US study suggests.


Researchers in New York compared the commonly recommended mammograms schemes used in the US to estimate the most effective at reducing breast cancer mortality.

These included annual screening from age 40; annual screening between the ages of 45 to 54 then every second year from 55 to 79; or every second year from 50 to 74.

According to the computer modelling, the first scheme reduced breast cancer deaths by an estimated 40 per cent, compared to 23 per cent and 31 per cent for the other schemes.

“If the goal is to avert the most breast cancer deaths and gain the most life-years, CISNET modelling shows that the optimal age of initiation for screening mammography is 40 years, the optimal screening is annual, and the optimal stopping age is when a woman’s life expectancy is less than five to seven years,” the authors concluded.

The findings are published in the international journal Cancer.

In Australia, the national breast cancer screening program – BreastScreen Australia – invites women aged between 50 and 74 for a free mammogram every two years.

When to initiate screening for breast cancer has sparked controversy in the past, says Cancer Council Australia boss Professor Sanchia Aranda.

“There was a lot of controversy at the time when the federal government extended the breast program here from 69 to 74 in terms of whether that age group should benefit from extra screening as opposed to going down to those in their 40s,” said Professor Sanchia Aranda.

“We currently probably over-screen some women at two years (intervals) and under-screen others,” Prof Aranda added.

Despite this, women at average risk of breast cancer should be “confident” in the national screening program, says Prof Aranda.

However, women with a strong family history of breast cancer are advised to be more vigilant and should seek advice from their GP

“If you have got a strong family history of beast cancer you probably want to be more vigilant than the current screening program might give you and particularly if you are young,” said Prof Aranda.

Professor Aranda says what the US study importantly confirms is that mammograms do save lives.

Breast cancer deaths have reduced by nearly 50 per cent since the introduction of mammography in Australia and more women should participate in the nations screening program.

“We currently have a less than 70 per cent participation, so we would like to see all women in the screening age participate and that would help to reduce breast cancer mortality even further,” said Professor Aranda.

US, South Korea conduct military drills

US and South Korean troops have started their annual drills that come after President Donald Trump and North Korea exchanged warlike rhetoric in the wake of the North’s two intercontinental ballistic missile tests last month.


The Ulchi Freedom Guardian drills are largely computer-simulated war games held every summer and have drawn furious responses from North Korea, which views them as an invasion rehearsal. Pyongyang’s state media on Sunday called this year’s drills a “reckless” move that could trigger the “uncontrollable phase of a nuclear war.”

Despite the threat, US and South Korean militaries launched this year’s 11-day training on Monday morning as scheduled. The exercise involves 17,500 American troops and 50,000 South Korean soldiers, according to the US military command in South Korea and Seoul’s Defence Ministry.

The exercises, the world’s largest computerised war-simulated drills, include representatives from seven member countries of the United Nations Command – Australia, Canada, United Kingdom, New Zealand, Netherlands, Denmark and Colombia – allied nations in the Korean War between 1950 and 1953.

No field training like live-fire exercises or tank manoeuvring is involved in the Ulchi drills, in which alliance officers sit at computers to practice how they engage in battles and hone their decision-making capabilities. The allies have said the drills are defensive in nature.

South Korea’s President Moon Jae-in said on Monday that North Korea must not use the drills as a pretext to launch fresh provocation, saying the training is held regularly because of repeated provocations by Pyongyang.

North Korea typically responds to South Korea-US military exercises with weapons tests and a string of belligerent rhetoric. During last year’s Ulchi drills, North Korea test-fired a submarine-launched ballistic missile that flew about 500km in the longest flight by that type of weapon. Days after the drills, the North carried out its fifth and biggest nuclear test to date.

Last month North Korea test-launched two ICBMs at highly lofted angles, and outside experts say those missiles can reach some US parts like Alaska, Los Angeles or Chicago if fired at normal, flattened trajectories.

Earlier this month, President Trump pledged to answer North Korean aggression with “fire and fury.” North Korea, for its part, threatened to launch missiles toward the American territory of Guam before its leader Kim Jong Un backed off.