The coming week could be pivotal in the ongoing war between Russia and Ukraine. U.S. President Donald Trump’s special envoy, Steve Witkoff, is expected in Moscow midweek.

President Trump has given an ultimatum to President Vladimir V. Putin of Russia to end the war in Ukraine or face U.S. sanctions.

U.S. President Donald Trump's special envoy Steve Witkoff is expected to visit Russia on Wednesday, state news agency TASS said on Monday, citing Russian and U.S. sources. Trump has set a deadline of Friday for Russia to agree to end the Ukraine war or face new sanctions.

Viktor Vodolatsky hit back at Trump's recent announcement about moving two U.S. nuclear submarines, saying his country has better ones.

US President Donald Trump said Friday he was ordering two US Navy nuclear submarines to “appropriate regions,” in response to remarks by Dmitry Medvedev, Russia’s former president and current deputy chairman of its Security Council.

WASHINGTON (Reuters) -U.S. President Donald Trump on Friday said he had ordered two nuclear submarines to be positioned in "the appropriate regions" in response to remarks from former Russian President Dmitry Medvedev about the risk of war between the nuclear-armed adversaries.