In the 1950s, SIS and the CIA jointly orchestrated the overthrow of Iran's Prime Minister Mohammad Mosaddegh. In the 1960s, SIS and the CIA jointly orchestrated the assassination of the Congolese independence leader Patrice Lumumba. In the 1970s, the ASIS and the CIA jointly orchestrated the overthrow of Chile's President Salvador Allende. During the Tiananmen Square protests of 1989, SIS and the CIA took part in Operation Yellowbird to rescue dissidents from the Chinese regime.