But military experts say Kyiv's use of Western armor will signal the start of a larger offensive.
"The Ukrainian counteroffensive, I think, is going to start with a bang, literally and figuratively," Mark Cancian, a retired US Marine Corps Reserve colonel, told Insider.
Ukraine's expected counterpunch will come on the heels of what turned out to be a lackluster offensive carried out by Russian forces during the winter.
The armored vehicles in particular are expected to help Ukraine hit hard and exploit gains quickly with shock, firepower, and mobility.
You want to keep the Russian armed forces guessing as to, is this actually the commitment of their main forces?"