The total atomic mass is 15.0030654 amu. Banaras Hindu University students also protested the police action targeting AMU and Jamia students. Turkmen also reside north of the Amu Darya in Turkmenistan. Geographically, it is the region between the Amu Darya and Syr Darya rivers. After crossing the Amu Darya at Termez his army surrounded the city. It is a tributary of the Amu Darya river. However, no boundary west of the Amu Darya was defined until 1885. One seat had been allotted to Amu Darya. The cave is therefore claimed as a source of the Amu Darya. The city was built along the river Amu Darya in a marshy delta area. Hydroelectric power from a large Soviet-built station on the Amu Darya is also important. The record was raised to 2000 atoms (25,000 amu) in 2019. In ancient times there was an important crossing on the Amu Darya river. In 1961, Col. Dan Crozier assumed command of the AMU. The official beginning of the organized navigation on the Amu Darya is 1873.