President Trump spoke on Tuesday with Ukrainian President Volodymyr Zelensky and discussed the ceasefire ultimatum Trump set for Russian President Vladimir Putin, according to Ukrainian officials. Why it matters: Trump's deadline to Putin will expire on Friday.

Donald Trump and Vladimir Putin are nearing a 'head-on collision' with the US president's deadline for a peace deal between Russia and Ukraine just days away

Russia has declared it's no longer considers itself bound by a self-imposed moratorium on deploying nuclear-capable intermediate range missiles, a warning that potentially sets the stage for a new arms race as tensions between Moscow and Washington rise again over Ukraine.

Russia ended its moratorium on deploying medium and short-range nuclear missiles on Sunday, citing NATO actions after U.S. withdrew from INF Treaty in 2019.

Joint drills are taking place in the Sea of Japan by Russia and China following President Donald Trump's announcement that he had deployed U.S. nuclear submarines in response to threats from Vladimir Putin Before Putin launched his full-scale invasion of Ukraine,