Weather systems and climate change are exacerbating the effects of the wildfires raging across Canada as they send hazardous smoke toward the U.S.
A retired U.S. brigadier general said the West is incapable of deterring Russian President Vladimir Putin's possible use of nuclear weapons in Ukraine.
Taiwan's defense ministry detected another wave of Chinese incursions around the island as China continues its pressure campaign.
Secretary of State Antony Blinken said the U.S. will continue to pursue diplomacy to prevent Iran from acquiring nuclear weapons.
The U.S. and Russia believe Ukraine has likely begun its long-awaited counteroffensive after observing a surge in fighting on the frontlines.
The U.S. has expressed concern over North Korea earning half of its foreign currency income from cybercrime activities and using it for its weapons program.
Ukrainian President Volodymyr Zelensky said Russian President Vladimir Putin is resorting to threats of using nuclear weapons due to fears of losing the war.
The U.S. military has accused a Chinese fighter jet of making a dangerous intercept of a U.S. Air Force aircraft over the South China Sea.
South Carolina Sen. Lindsey Graham's edited comments regarding Russian deaths in the Ukraine invasion caused outrage and fury in Moscow.
Analysts believe Taiwan would benefit from joining the U.S. nuclear umbrella despite the grim possibility of a nuclear war with China.
North Korea is poised to deploy additional IT workers abroad to sustain its cybercrime activities, which fund its notorious weapons program.
Pro-Ukraine volunteer fighters appeared to use the U.S.-made armored vehicles during their unprecedented incursion into Russia's Belgorod region.
For the first time, China published the results of its war game simulations, which reveal its ability to destroy a U.S. carrier group using hypersonic missiles.
Israel's military chief has sounded alarm over Iran's continued uranium enrichment in its nuclear program, vowing to take military action to stop it.
With the war in Ukraine still raging, a political analyst believes Russia is considering using tactical nuclear weapons, but the U.S. is ready to respond.
China has not officially unveiled one of its most advanced hypersonic missiles, the DF-27.
Taiwan hopes to equip the island with a more advanced version of the U.S.' missile defense system, but analysts are skeptical about its capabilities.
The president of Taiwan's legislature painted a bleak future of the world amid Chinese aggression, saying Beijing would go further beyond Taiwan.
The U.S. once dreamed of detonating a nuclear bomb on the moon to intimidate the then-Soviet Union, according to a research paper by American scientists.
Leaked U.S. intelligence documents indicated that South Korea is highly vulnerable to potential North Korean drone attacks.
Iran accused the United States of procrastinating in efforts to revive Tehran's 2015 nuclear deal.
Israel has warned that Iran is now capable of producing five nuclear weapons after its nuclear program gained enough uranium-enriched material.