US President Joe Biden has allowed Ukraine to strike Russian territory with American weapons. According to Western media, the first strikes could begin within a few hours or days. RBC-Ukraine explored what this decision by a key ally means and what opportunities it opens up. Contents There’s a green light with limitations: What is knownUkraine’s use of American weapons against RussiaWill the Ukrainian Armed Forces be able to drive out Russian troops from the northern part of the Kharkiv regionWill the US continue to lift restrictionsHow Russia reacts and why ‘it will be easier later’There’s a …