North Korean leader Kim Jong Un poses for a group photo with sharpshooters of the North's Air and Anti-Aircraft Force (Picture: KCNA via PA).
The leader of North Korea has overseen an airbourne military exercise and vowed to build an "invincible army" - despite diplomatic efforts from the South and the US.
Kim Jong Un's actions come alongside action taken by the US and South Korea to promote diplomacy around the North's nuclear capabilities.
At an Asian defence ministers' conference in Bangkok yesterday, US Defense Secretary Mark Esper said the United States has indefinitely postponed a joint military exercise with South Korea in an "act of goodwill" towards North Korea.
Talks of another summit between US President Donald Trump and Kim Jong Un were also sparked by Mr Trump's on Twitter.
"I am the only one who can get you where you have to be," he wrote.
"You should act quickly, get the deal done. See you soon!"
North Korea has now publicised two military drills in three days - a report detailing how Mr Kim urged combat pilots to prepare against enemies "armed to the teeth" while attending a flight demonstration.
He also said it is "necessary to wage a drill without notice under the simulated conditions of real war" - planning to build his forces into an"invincible army", according to The Korean Central News Agency (KCNA).
US efforts to facilitate the denuclearisation of North Korea faltered alongside negotiations, after a failed second summit in February.
The US rejected North Korean demands for broad sanctions relief in exchange for a partial surrender of its nuclear capabilities.
Mr Kim issued an end-of-year deadline for the Trump administration to offer mutually acceptable terms for a deal.
Recent months have seen a flurry of projectile test-launches from North Korea - one reportedly fired from underwater.
Despite the breakdown in talks, Donald Trump did make an unprecedented visit to North Korea in June.