Russia’s foreign minister on Saturday warned the U.S., South Korea and Japan against forming a security partnership targeting North Korea as

South Korea, Japan and the United States conducted a joint air drill on Friday involving a U.S. B-52 strategic bomber and fighter jets of the three allies over international waters, the South's defence ministry said.

The top military chiefs of South Korea, the United States and Japan met in Seoul Friday, as US President Donald Trump piles pressure on Washington's allies over defence spending and trade. General Dan Caine,