"Even with Western tanks, it would be hard to punch through Russian lines in Donbas because it's a front that has been fortified for almost the last 10 years," says Vautravers.

Source: https://www.france24.com/en/europe/20230216-we-have-to-take-more-risks-ukrainian-forces-hold-the-line-as-battle-for-donbas-heats-up