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

Without the New START treaty, which caps the number of deployed nuclear warheads at 1,550 on each side, there will be no limits on the U.S. and Russian arsenals.

The agreement was reached following meetings between U.S. Gen. Alexus Grynkewich, who is the commander in Europe of both U.S. and NATO forces, and senior Russian and Ukrainian military officials, the U.

A nuclear treaty first signed in 2010 is expiring this week. If it's not replaced, experts say a global arms race could be in the cards.

MOSCOW (Reuters) -Russia's lower house of parliament on Wednesday approved a move to withdraw from a landmark agreement with the United States aimed at reducing vast stockpiles of weapons-grade plutonium left over from thousands of Cold War nuclear warheads.

WASHINGTON, Feb 5 (Reuters) - The U.S. military said that Washington and Moscow on Thursday agreed to reestablish high level military-to-military dialogue, following talks in Abu Dhabi, a move which could signal a move towards normalizing some ties between the United States and Russia.

A treaty between Russia and the United States designed to cap nuclear weapons is due to expire on Thursday without further action. That would lift limits on the world's largest nuclear arsenals for the first time in half a century.

On September 22, Russian President Vladimir Putin stated that Russia would be willing to abide by the limits in the New START nuclear arms control treaty for an additional year if the United States did the same. Both the United States and Russia are ...

Dmitry Medvedev, deputy chairman of Russia’s Security Council, criticised the United States over the operation that ousted Nicolas Maduro, saying it damaged the global system of international relation