The 65-mile border that separates Lithuania and Poland has become NATO's biggest nightmare, and a potential Russian lifeline.

Follow the latest on the war in Ukraine here - and submit your questions on any aspect of the conflict below for our experts to answer.

Follow the latest on the war in Ukraine here - and submit your questions on the war in the box below for our experts to answer.

U.S. President Donald Trump said he had spoken with Russian President Vladimir Putin about ending the war in Ukraine but declined to say how many times they had spoken, the New York Post reported on ...