Drone footage seemed to show missiles and cluster munitions pepper Russian positions in a Zaporizhzhia military base attack.

Kyiv has used U.S.-supplied ATACMS effectively against high-value Russian assets in Moscow-controlled Ukraine and Crimea.

Striking Russian ammunition and troop concentrations feeding the battle against Ukraine applies pressure on Russia. As Sen. Marco Rubio has said, Ukraine needs leverage. ATACMS helps.

What Is ATACMS? The Army Tactical Missile System, or ATACMS, is a Cold War-era weapon designed to provide the U.S. military with long-range strike capabilities.

The U.S. embassy in Ukraine says Russia could launch a "significant air attack" on Kyiv after U.S.-made missiles were fired into Russia's Bryansk region.

Ukraine hit a Russian weapons arsenal with US-made ATACMS missiles that it fired across the border for the first time, according to two US officials, in a major escalation on the 1,000th day of war.

Social-media users said the video showed the aftermath of a strike at a site in Zaporizhzhia, Ukraine.

Russia claims it shot down US-made ATACMS missiles and issues nuclear threat Two U.S. officials confirmed Ukraine fired ATACMS at targets in Russia.

Ukraine has fired ATACMS into Russia, marking the first attack using the U.S.-made long-range missiles in 1,000 days of war.

The US has never allowed Kyiv to use long-range missiles for attacks inside Russia proper – until now.

What Are ATACMS, the U.S. Missiles That Officials Say Ukraine Fired Into Russia? In a major policy shift, the Biden administration has authorized Ukraine to use the ballistic missiles within Russia.