Ukraine appears to have used US weapons to take out targets on Russian soil, kicking off a new stage in the war

• Ukraine appears to have struck a prized air-defense system on Russian soil using a US-supplied HIMARS.
• The attack came amid a flurry of reports suggesting a major Ukrainian attack over the weekend.
• It also came hours after Biden approved the limited use of US-supplied weapons on targets in Russia.

Ukraine appears to have used US-supplied weapons on Russian soil in a wave of reported attacks — signaling that a new phase of the war may well be underway.