Frustration with the United States for holding back critical financial and military aid from Ukraine spilled into the open at the Delphi Economic Forum in Greece last week.

“The Russians are destroying Ukrainian power plants, which is a war crime, but unfortunately they’re getting away with it because as the collective West we have not supplied Ukraine with enough missiles,” Radoslaw Sikorski, the Polish former foreign and defence minister, told Al Jazeera on the sidelines of the meeting.