The US-mediated talks are the latest chapter in the so far unsuccessful diplomatic effort to halt the war in Ukraine.

A Russian official said Moscow is ready to respond with military measures if the United States deploys its missile defense program to Greenland.

Experts warn that the expiration of a long-standing nuclear arms control treaty between the two superpowers could mark the start of a new nuclear rivalry.

Trump's Greenland focus highlights urgent Arctic security needs as Sen. Sullivan reveals new U.S. defenses against Sino-Russian threats in Alaska.

U.S., Russian and Ukrainian negotiators are back around a table for a second round of technical talks, but in Kyiv, Russian bombs bring suffering and skepticism.

Oil futures recovered part of the previous day’s losses as India was expected to curtail purchases of Russian crude under a trade deal with the U.S.

Russia has violated a request made personally by US President Donald Trump and launched a massive strike on Ukraine at the height of winter cold. Kyiv is now expecting a response from Washington to this crime,

Dmitry Medvedev, former Russian president and current deputy chairman of Russia's Security Council said the United States' seizure of Venezuelan President Nicolás Maduro has shattered international relations and could be viewed by Caracas as an act of war.