The United States is sending a second aircraft carrier, the USS George Washington, to join the USS Abraham Lincoln near Iran, giving it two carrier groups in the region.
NATO fighter jets shot down a drone that crossed into Latvia near its border with Russia and Belarus on Friday.
Russia struck Izmail, Ukraine's main Danube River port, damaging grain export facilities, while Kyiv hit an oil refinery inside Russia.
Four defense stories this week point to the same problem: governments have money and plans, but not enough factory capacity to build weapons fast enough.
Kaja Kallas, the EU's foreign policy chief, and the European Commission are asking EU countries to voluntarily give Ukraine some of their Patriot air-defense systems, which shoot down incoming missiles.
Senate Democrats are asking the Trump administration why it has issued no new sanctions in 17 months against networks that help Russia dodge existing sanctions imposed over its war in Ukraine.
Russia struck Izmail, Ukraine's main port on the Danube River, overnight, damaging grain export terminals and starting fires.
Taiwan says a hacking campaign linked to a foreign government hit its computer systems last month, and that the attackers used artificial intelligence tools to carry it out.
Rostec, the Russian state company that builds most of Russia's weapons, has been under European Union sanctions since 2022.
Iran has said it will only reopen the Strait of Hormuz, a narrow sea passage that much of the world's oil ships through, if the United States lifts its economic sanctions on Iran.
Ukraine's president says he has sent the United States formal proposals to end the war, even as Russia steps up pressure through airspace incursions NATO calls deliberate tests, attacks on Ukrainian grain ports, and threats to seize European Union-flagged ships.
Russia's President Vladimir Putin threatened to seize ships flying European Union flags anywhere from the Black Sea to the Pacific Ocean.