Russia Friday rejected an appeal from London to "change its behavior" in order to mend relations that have been stung by the poisoning of a former Russian spy in Britain. "No, we won't change [behavior] because the only thing Russia wants is beneficial relations that are based on each...

British Prime Minister Theresa May steps down as leader of her Conservative Party on Friday, formally triggering the race for a successor who will try where she failed to deliver Brexit. May will remain prime minister until a new leader is chosen, likely in late July, but has relinquished...

Britain said Thursday that resetting ties with Russia depended on Moscow changing behavior, hours after Russian President Vladimir Putin said it was time to "turn the page" on the difficult relationship. "We can only have a different relationship if Russia changes its behavior," a...

Russian President Vladimir Putin warned Thursday there was a significant risk that the international system for nuclear arms control could break down, saying talks with Washington on extending the New START nuclear arms treaty had yet to begin. Speaking in televised comments from St....