Pentagon

President Joe Biden announced Monday that al-Qaida leader Ayman al-Zawahri was killed in a US drone strike in Kabul

Pentagon press secretary John Kirby says assessments show Ukrainian troops are still contesting the southern city of Mariupol.

The U.N. nuclear watchdog says its director-general has arrived in Ukraine for talks

The Pentagon may have to ask Congress for additional money to support Ukraine’s battle against Russia’s invasion.

The United States will neither engage in hostilities in Ukraine nor establish a no-fly zone over the country, Pentagon chief Lloyd Austin told the CNN broadcaster.

NATO Secretary General has said that Russia may be the one planning chemical attacks

President Joe Biden told Russia’s Vladimir Putin that invading Ukraine would cause “widespread human suffering” and that the West was committed to diplomacy.

The Biden administration on Friday escalated dire warnings of a possibly imminent Russian invasion of Ukraine, saying it could happen at any moment.

The French president and German chancellor will head to Moscow and Kyiv, adding to diplomatic efforts to try to deter Vladimir Putin from launching an invasion of Ukraine

The military investigation into the deadly attack during the Afghanistan evacuation has concluded that a suicide bomber's attack was unpreventable.