Ukraine hits Russian drilling platforms in Caspian Sea, military reports * Ukraine brings US-made Tempest air defense system into combat, footage suggests * Russia seeks to set stage for new offensive,

Russia said Friday it used its latest missile against Ukraine for a second time in the nearly 4-year-old war, a forceful signal to Kyiv and its Western allies as U.S.-led peace talks have entered a new and crucial stage.

Ukraine's commander in chief said December was the first month that its drones "neutralized" roughly as many Russians as were called up.

Europe needs a strong bulwark against Russian aggression, but building and maintaining it will be challenging.

Russia fired a hypersonic Oreshnik missile at Ukraine in retaliation for an alleged attack on one of Putin's residences that the U.S. and Ukraine have denied.

President Volodymyr Zelensky said Ukraine needs to focus on security issues, developing its defense and security forces, and peace talks.

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Russia warns Western forces deployed to Ukraine under postwar security deal would be "legitimate combat targets" as diplomatic tensions escalate.

Ukrainian forces struck three Russian drilling platforms belonging to Lukoil, one of Russia's largest oil producers, in the Caspian Sea, Ukraine's General Staff reported on Jan. 11. Separately, Ukraine also hit a Russian Buk-M3 anti-aircraft missile system in the occupied parts of Ukraine's Luhansk Oblast and other military assets,

Ukraine's air defense and electronic warfare systems intercepted 125 out of 154 Russian drones, while another 22 drones hit 18 locations.