Video footage purports to show a stockpile of weapons sold to Palestinian Hamas fighters by Ukraine, as the man behind the camera thanks the “Ukrainian authorities” for selling them the weapons, vowing to use them against Israel. The claim comes as multiple photographs and videos emerge of Palestinians using American weapons in the rapidly developing conflict between Israel and Hamas. The onslaught of attacks against Israel by Hamas Islamists may be coming, in large part, with the help of American weapons, new video footage and claims from Hamas fighters suggest. “We thank the Ukrainian authorities for selling us these weapons,”...