Poland is sharply strengthening its air defenses. The Pentagon’s DSCA approved a major boost to Warsaw’s AIM-9X Block II Sidewinder buy—an extra 120 missiles, lifting the package to $319.2 million.

"The Polish-American alliance is strong, regardless of who governs in Warsaw and Washington," Polish Foreign Minister Radoslaw Sikorski said.

The launch of a Falcon 9 rocket from the US Space Force base at Vandenberg, California, carrying Poland’s first military ...