Russia launched a wave of new missile and drone attacks against Ukraine

 Russia launched a wave of new missile and drone attacks against Ukraine Thursday, killing at least 11 people, including one in the capital Kyiv, according to emergency officials, and targeting the country's already-battered energy infrastructure. The strikes forced officials to switch off the electricity in a couple regions to cope with reduced capacity.

Air raid sirens wailed across the country Thursday morning heralding the latest strikes. Ukraine's national emergency service agency said later that 11 people were killed and the same number wounded in the strikes, which came as Russia reacted to a landmark decision by U.S. President Joe Biden to supply Ukraine with modern, powerful M1 Abrams main battle tanks. 

While the 31 American tanks won't actually reach the battlefields of eastern Ukraine for months, given the need to train and equip Ukrainian forces to use the advanced hardware, the commitment from Mr. Biden came with a similar promise from Germany to send Leopard 2 tanks to Ukraine — and to permit other European nations to send German-made Leopards from their stocks.

• These are the tanks Ukraine will get from the U.S. and Europe

Hundreds of Leopard tanks are sitting in military bases across Europe, and they can be delivered to Ukraine on a shorter timescale than the Abrams.

Both the U.S. and Germany have said the aim is to give Ukrainian forces dozens of tanks, likely about 100, to enable them to punch through Russian front lines and retake occupied territory.

The question is whether the tanks can be deployed in time to help the country stave off a new Russian offensive expected in the coming weeks or months — or to lead the charge in a Ukrainian counteroffensive against Moscow.

Russia sent mixed signals in the wake of the Wednesday announcements by Washington and Berlin, playing down the strategic value of the Western military hardware to Ukraine, but also renewing warnings about the risks of the war growing into a wider regional conflict as NATO states increase their stake in the fight.

"There are constant statements from European capitals, from Washington, that the sending of various weapons systems, including tanks, to Ukraine in no way means the involvement of these countries or the alliance [NATO] in the hostilities that are taking place in Ukraine," Kremlin spokesman Dmitry Peskov said Thursday. "We categorically disagree with this... everything that the alliance I mentioned and the capital [Washington] does is perceived as direct involvement in the conflict, and we see that it is growing."