MOSCOW—Russia is a sending an unspecified number of troops from the country’s far east to Belarus for major war games, officials said Tuesday, a deployment that will further beef up Russian military presence near Ukraine amid Western fears of a planned invasion. Amid the soaring tensions, the White House warned that Russia could attack its neighbor at “any point,” while the UK delivered a batch of anti-tank weapons to Ukraine. Russia’s Deputy Defense Minister Alexander Fomin said the joint drills with Belarus would involve practicing a joint response to external threats. Ukrainian officials have warned that Russia could launch an attack on Ukraine from several directions, including from its ally Belarus. The United States again stressed its concern Tuesday, with White House press secretary Jen Psaki describing the Russian forces’ move into Belarus as part of as “extremely dangerous situation.” “We’re now at a stage where Russia could at any …