Prime Minister Shinzo Abe had recently said Pyongyang may be capable of delivering missiles equipped with sarin gas.
The drill was conducted near the eastern port city of Wonsan as Pyongyang marked the 85th founding anniversary of its army.
'People put blindfolds on for decades and now it's time to solve the problem,' Trump said.
Suspicions that Assad still has chemical weapons persist, in spite of a 2015 agreement to destroy them.
The comments come as China's president urged restraint from all sides.
Powerful photos by Stephanie Sinclair, winner of the 2017 prize, plus hard-hitting images by other female photographers recognised by the awards jury.
Defence Secretary Michael Fallon claimed the UK 'uses the deterrent every single day'.
A local commander said the terrorists were dressed in military uniforms and drove military vehicles.
Pentagon warns Pyongyang: Stop your destabilising actions as carrier group approaches Korean peninsula.
The Labour leader was grilled on his foreign policy views on the Andrew Marr Show.
A North Korean firm has generated tens of millions by investing and trading in London property.
The unverified video has reignited allegations of extrajudicial killings against the Egyptian army.
The attackers targeted a major headquarters in northern Afghanistan, which is often used by foreign military advisers.
Two Chinese intelligence-linked cyberespionage groups have reportedly launched attacks against South Korea.
Abdurakhmon Uzbeki reportedly 'close associate' of IS warlord Abu Bakr al-Baghdadi.
Syrian president transfers combat aircraft to bases protected by Russian air-defence system
The Trump administration will not pass the buck to a future government, the secretary of state said.
The Syrian president had declared in 2013 that it had nearly 1,300 tonnes of chemical weapons.
OPCW says presence of the nerve agent in Syrian town is 'incontrovertible'.
President claims Russia has turned Crimea into 'world's biggest military base'.
State media claims bomber used the technology to disable USS Donald Cook in 2014.
LRA notorious for having abducted tens of thousands of children to serve as fighters and sex slaves.
Total of 40 mass graves now found in area ravaged by clashes between Kamuina Nsapu militia and army.
The suicide bombing hit buses of evacuees from al-Foua and Kefraya, killing more than 60 children.
Colonel Palanga Nawej replaced controversial General Celestin Kanyama, who was sacked this week.
Army now ''controls'' area where over 1,150 people have been killed and kidnapped by armed groups.
In 2015, US and other nations agreed to lift sanctions against Iran in exchange for Tehran curbing its nuclear programme.
The president has been accused of undermining his own threats with the mix-up.
The St Catherine's Monastery in south Sinai is one of the oldest Christian sites in the world.
US pilots escorted the planes for 12 minutes before the TU-95s changed course and headed to Russia.