China

The Navy has also been working on how to "better operate in the challenging region."

Flournoy said the task of deterring China while seeking avenues of cooperation was hindered by divisions in the U.S.

For the first time since 2008, the Democratic Party will control both chambers of Congress and the executive branch.

Wednesday's events shocked U.S. allies.

Putin has not been shy about dropping hints that he would consider a more formal alliance with China.

China called the McCain's movements "a serious violation" of its sovereignty and security.

More U.S. Air Force planes are set to operate in the Pacific as China continues to flex its muscles in the South China Sea.

The U.S. sea services are in day-to-day competition with China and Russia, states a new strategy, called "Advantage at Sea."

President Donald Trump has issued a new threat to veto the $740 billion defense policy bill.

The Trump Administration has adopted a strategy that could be described as "Economically Containing China."