The report was back online on Saturday.
New images suggest the Chinese navy has outpaced its U.S. and Russian counterparts in developing a powerful ship-mounted railgun.
But who donated it?
Cyberattack and artificial intelligence are already being integrated into the arsenals of the world's leading militaries.
China's official military newspaper compared nuclear weapons to a sword of Damocles hanging over humanity, but said upgrades were necessary.
"It will be a very, very kinetic, physical, violent fight over some really, really tough ground, and everybody is going to have to be mentally prepared," Marine Corps Commandant General Robert Neller said.
The U.S. will not keep up with its rivals if it does not make a big technological leap in its planning for future army kit, General Mark Milley has warned.
The U.S. has yet to fully support the landmark talks between rivals North Korea and South Korea, saying Kim Jong Un must first abandon nuclear weapons.
China asked, "If South Korea can enhance ties with North Korea, why can't the U.S. and other countries?"
North Korea has never revealed Kim Jong Un to have any children, but NBA star Dennis Rodman said, "he's a good dad and has a beautiful family."
Both President Donald Trump and North Korean supreme leader Kim Jong Un garnered global criticism for their infamous tempers.
The cache includes knives and spearpoints and the first giant hand axe ever discovered in the Arabian Peninsula.
Japan says historic decisions to purchase new, powerful weapons were purely defensive, but North Korea said Tokyo was preparing another invasion.
Metalworkers in the ancient world would hunt for iron from meteorites to create rare weapons and artefacts.
Militaries around the world are working to develop mechanized skeletons that seek to give soldiers added muscle in running, jumping and lifting.
Will U.N. ambassador Nikki Haley, like former Secretary of State Colin Powell, regret her presentation on the alleged threat posed by Iran?
With the establishment of a new Cyber Operations Center, NATO has launched a new, historic campaign of electronic warfare.
Russia's increasing military activity and NATO's mobilization of troops across Europe have put nonaligned Finland in a tough spot.
The military uses satellites to detect missile threats.
"If Kim Jong Un wants to stay alive, he needs to stop," Senator Steve Russell said, channeling his experience in hunting Saddam Hussein in Iraq.
The former chiefs of staff chairman cited North Korea's unpredictability as an issue.