"Ukraine is not a testing ground for weapons," says president Volodymyr Zelenskyy as he warns Russia wants to "spread fear ...

The S-400 surface-to-air missile system is considered roughly equivalent to the American-made Patriot air-defense system ...

President-elect Donald Trump is filling out the ranks of his incoming administration, with key Cabinet picks still to face confirmation hearings in the Senate. Follow for live updates.

Vladimir Putin could be ousted from power if he attacked the U.S. or the U.K, an expert argues. This week, the Russian ...

By Catherine Gegout The International Criminal Court (ICC) has issued arrest warrants for Israeli prime minister, Benjamin ...