Russia threatened to aim nuclear missiles at Danish warships if Denmark joins NATO's missile defense system, in comments Copenhagen called unacceptable and NATO said would not contribute to peace.
The United States will struggle to follow through on threats to impose deeper sanctions on the Russian energy sector, as European fears over collateral economic damage leave President Barack Obama's administration with diminished options.
The United States will not take the floor at the main U.N. human rights forum on Monday during the annual debate on violations committed in the Palestinian territories, as part of a previous agreement not to speak.