The US military is keeping a constant watch on Russia’s nuclear arsenal as the war in Ukraine continues and Defense Secretary Lloyd Austin is being briefed two or three times a week by the top US general who oversees US nuclear weapons and defenses, according to multiple defense officials. The US has not seen any indication Russia has made any moves to prepare nuclear weapons for use during the war, but two sources familiar with recent intelligence assessments told CNN that… – CNN Photo: US Dept. of Defense