Western restrictions on the use of Western weapons to strike Russian targets have made it “impossible to fight” effectively, according to a top adviser to Ukrainian President Volodymyr Zelensky.

“The partners have to take off any restrictions to use these weapons, not just [on] Ukrainian territory but have the possibility to answer, including [on] the territory of Russia, because it’s impossible to fight,” Andriy Yermak, the head of the Ukrainian presidential office, told a public forum on the sidelines the NATO summit in Washington.