Poland is concerned it may have to reassert itself in Eastern Europe following the unrest in Russia and Ukraine.
Carter benefited from bipartisan support after he was nominated in December.
NATO's Secretary-General said the measures, a response to Russia's annexation of Crimea, were defensive.
9,000 potential jurors received a summons, "one of the largest pools in American history."
Russian Space Command has unveiled four new radar stations, in an effort to rebuild their early-warning network
Civil liberties group argues government claims are insufficient to withhold more than 2,100 images.
The three countries are said to have an agreement in the works to counter nuclear and missile threats, to be signed Monday.
The Defense Department's research arm says the need for new weaponry is "critical."
A perceived democracy deficit in Ankara has hindered Turkey's process of joining the EU
New data and directives presented by outgoing Secretary of Defense Chuck Hagel draw a lukewarm response.
China has developed emerging stealth fighter technology, anti-satellite missiles and now has one aircraft carrier in operation
Climate change, the Pentagon writes, requires immediate action on the part of the U.S. Military