Likewise Australians also looked down upon the fighting qualities of Americans; most considered the Americans an inferior fighting force who seemed all glitz and brashness. Even MacArthur was upset and humiliated by reports that during an earlier attack against the perimeter's eastern flank at Buna, American soldiers had dropped their weapons and run from the Japanese. This feeling towards the Americans would be furthered during the Battle of Buna, where Australian troops bore the brunt of the fighting due to American "inactivity". Buna, the fourth major Allied victory in New Guinea, was presented not only as the first major victory but an American one. Sanananda, an Australian victory, was presented as merely a mopping-up operation. The Americans would not acknowledge that Australians won the critical battles of Milne Bay, Kokoda and Gona, were largely responsible for the victory at Buna, and were "overwhelmingly" responsible for victory at Sanananda. Australians often regarded the U.S. soldiers as boasting how they, and they alone, saved Australia.