In the 1930s, Nanga Parbat became the focus of German interest in the Himalayas. The German mountaineers were unable to attempt Mount Everest, since only the British had access to Tibet. Initially German efforts focused on Kanchenjunga, to which Paul Bauer led two expeditions in 1930 and 1931, but with its long ridges and steep faces Kanchenjunga was more difficult than Everest and neither expedition made much progress. K2 was known to be harder still, and its remoteness meant that even reaching its base would be a major undertaking. Nanga Parbat was therefore the highest mountain accessible to Germans and was also deemed reasonably possible by climbers at the time.