Yusef's reign was turbulent and marked with frequent uprisings against the royal family for giving up the country's independence to France. The most serious of these was a Berber uprising in the Rif Mountains, led by Abd el-Krim. Though this originally began in the Spanish-controlled area in the north of the country, it reached to the French-controlled area until a coalition of France and Spain finally defeated the rebels in 1925. To ensure his own safety, Yusef moved the court from Fez to Rabat, which has served as the capital of the country ever since.
Yusef's reign came to an abrupt end when he died suddenly of uremia in 1927. He was succeeded by his son Muhammad.
Role Of The Atlasic Trends In The Neotectonic And Present Evolution Of The Rif And Its Foreland (Morocco) In Structure And Evolution Of The Atlas Mountain System In Morocco, Berlin, 1990, 42.
Latest Developments Of Seismology In Morocco In Mednet: The Broad-Band Seismic Network For The Mediterranean, E. Boschi, D. Giardini, And A. Morelli (Editor), Intituto Nazionale Di Geofisica, 1991, 502-510.
Hydrocarbon Generation In The Essaouira Basin Of Western Morocco, American Association Of Petroleum Geologists Bulletin, 77, 999-1015.