Russia

The brother of Paul Whelan, the American arrested in Moscow in late December, says Russia has given the family no information for why he is being accused of spying.

The U.S. and Russia seem increasingly interested in battlefield nuclear weapons. Arms control advocates fear a return to the darkest days of the Cold War.

Yevgeny Prigozhin, a high-end caterer with ties to Russian President Vladimir Putin, is accused of interfering in the 2016 U.S. election and is linked to Russian mercenaries in Syria and Ukraine.

President Vladimir Putin phoned Venezuela's Nicolás Maduro to express his support. But Russian opposition leader Alexei Navalny called President Trump's decision to back Juan Guaidó "outstanding."