Air Force Secretary Wynne Resigns.

WASHINGTON, Nov. 21 (UPI) -- A retired Marine general has emerged as President-elect Barack Obama's choice for his national security adviser, officials close to the transition team said.

BRUSSELS, Nov. 19 (UPI) -- Russia sees new threats from NATO and the United States, and they see new threats from Russia. And even where they see common dangers -- as in the case of potential and actual missile threats from Asia and the Middle East -- they cannot find common ground on how to deal with them. How do we reverse this steady escalation of tension and confrontation? Part two of three.

WARSAW, D.C., Nov. 14 (UPI) -- U.S. Army Gen. Ann E. Dunwoody became the first female Friday to become a four-star general in the history of the U.S. military in a ceremony at the Pentagon.

WASHINGTON, Nov. 14 (UPI) -- The United States has dismissed a Russian offer to abandon a plan for deploying missiles if the U.S. European defense shield is dropped, officials said.

TALLINN , Estonia, Nov. 13 (UPI) -- Ukraine is making progress but still has a way to go before becoming a NATO member, U.S. Defense Secretary Robert Gates said Thursday in Estonia.

MOSCOW, Nov. 13 (UPI) -- A number of longstanding, minor but still contentious issues remain like anti-personnel mines planted on the path toward better relations between Russia and the United States under the incoming Obama administration.

TALLINN, Estonia, Nov. 12 (UPI) -- U.S. Defense Secretary Robert Gates sought to reassure the Baltic States of continued U.S. and NATO support while in Estonia Wednesday.

TALLINN, Estonia, Nov. 12 (UPI) -- U.S. Defense Secretary Robert Gates was mum Wednesday about whether he has spoken with President-elect Barack Obama's transition team about his future.

WASHINGTON, Nov. 10 (UPI) -- U.S. President-elect Barack Obama likely will keep Bush appointees in several critical posts for continuity in his administration's early days, observers said.

MOSCOW, Nov. 10 (UPI) -- There is a big difference between Russia and the United States in their nuclear weapons testing policies.