Mexican Cession Mexican Cession, with considerable local autonomy punctuated by several revolts and few troops sent from central Mexico, in the period from 1821–22 after independence from Spain up through 1846 when U.S. military forces seized control of California and New Mexico on the outbreak of the Mexican–American War. The northern boundary of the 42nd parallel north was set by the Adams–Onís Treaty signed by the United States and Spain in 1821 and ratified by Mexico in 1831. The eastern boundary of the Mexican Cession was the Texas claim at the Rio Grande and extending north from the headwaters of the Jojo
Angolan War of Independence the MPLA after Neto reasserted his leadership. The combined forces of the MPLA, the UNITA, and the FNLA succeeded in their rebellion not because of their success in battle, but because of the Movimento das Forças Armadas' coup in Portugal. The MFA was an organisation of lower-ranked officers in the Portuguese Armed Forces which was responsible for the Carnation Revolution of 25 April 1974, which ended the Portuguese Colonial War and led to the independence of the Portuguese overseas territories. The MFA overthrew the Lisbon government in protest against the authoritarian political regime and the ongoing African colonial wars, specially