As other nations see the impact of U.S. weapons in the Ukraine war, the Pentagon is getting more requests for them, including the high-tech, multiple-launch rocket system that Ukrainian forces have successfully used against Russian ammunition depots and other supplies, Defense officials said Friday. Bill LaPlante, the department’s under secretary for acquisition, told reporters that the Pentagon has been working with the defense industry to increase production lines to meet both U.S. and international demands for certain weapons. And he said some countries have already begun asking about buying the High Mobility Artillery Rocket Systems, or HIMARS. As a result,...