The first German expedition to Nanga Parbat was led by Willy Merkl in 1932. It is sometimes referred to as a German-American expedition, as the eight climbers included Rand Herron, an American, and Fritz Wiessner, who would become an American citizen the following year. While the team were all strong climbers, none had Himalayan experience, and poor planning (particularly an inadequate number of porters), coupled with bad weather, prevented the team from progressing far beyond the Rakhiot Peak northeast of the Nanga Parbat summit, reached by Peter Aschenbrenner and Herbert Kunigk, but they did establish the feasibility of a route via Rakhiot Peak and the main ridge.