The first and potentially only high-ranking U.S. military officer to be granted access to Soviet combat operations on the Eastern Front, Hurley reported amiable relations with Soviet military officers. He gave his Soviet aides nicknames from Native Americans chiefs, "Rain-in-the-Face" and "Sitting Bull." He also reported that the Soviet generals "were interested in the amount of war supplies–especially planes, tanks, and trucks–that the United States [could] furnish Russia" and that they were adamant that a second front needed to be opened soon.