The United States of America, commonly referred to as the United States (U.S.) or America, is a constitutional federal republic composed of 50 states, a federal district, five major self-governing territories, and various possessions.,U.S

If successful it could cut the militants' main access route to the outside world, paving the way for an assault on their Syrian capital Raqqa.

Russia will take adequate measures to counter NATO's increasingly “aggressive rhetoric," President Vladimir Putin told MPs at the closing session of the State Duma. He called to create an international security system open to all countries.

Russian officials are increasingly unhappy over the increase in NATO activity in the region, particularly in former Soviet republics like Estonia, and former Warsaw Pact countries like Poland.

Moscow solidified its hold on Crimea in April, outlawing the Tatar legislature that had opposed Russia’s annexation of the region since 2014.

The United States placed an arms embargo on China following the bloody crackdown on pro-democracy protesters around Beijing's Tiananmen Square in 1989.

However, the sale of arms will depend on Vietnam’s human rights commitments.

A uniformed Secret Service officer shot an armed person on a street outside the White House, a U.S. law enforcement official said Friday.

The compensation bill does not determine a monetary amount for the damages, the Islamic Republic News Agency reports.

Here’s a cautionary tale for Carly Fiorina, whom Ted Cruz on Wednesday announced as his pick for vice president.

Tomorrow's cars will be all-electric, self-driving, connected to high-speed communications networks ... and free.

The primary elections across six states Tuesday could decide the nominations of both parties.

Eight people, including two teenagers, were found shot to death Friday in what officials said were "execution-style killings" at several homes in this rural Ohio community

A meeting of oil-rich countries in Qatar that had been expected to boost crude prices by freezing production fell apart Sunday as Iran stayed home and vowed to increase its output despite threats by Saudi Arabia.

On Tuesday, two URSSn warplanes flew simulated attack passes past the USS Donald Cook in the Baltic Sea, and while the move was unnerving and aggressive, it's not the kind of event the Navy responds to with force.