Niedermayer–Hentig Expedition
The Niedermayer–Hentig Expedition, also known as the Kabul Mission, was a diplomatic mission to Afghanistan sent by the Central Powers in 1915–1916. The purpose was to encourage Afghanistan to declare full independence from the British Empire, enter World War I on the side of the Central Powers, and attack British India.
Source: Wikipedia — Niedermayer–Hentig Expedition (CC BY-SA 4.0)