Why Ukrainians are in trouble in the Donbass and what could happen if more American weapons arrive

LONDRA – Russian forces are advancing in the Donbass. Moscow affirms it, Kiev admits it. They have not yet conquered the entire region, indicated by the Kremlin as the “real target” of the war after the unsuccessful withdrawal from Kiev, but if the offensive continues to make progress they may succeed in the course of the summer. Here are some questions and answers to understand what Ukraine risks and what difficulties Putin’s troops still face.