In the 1950s, SIS and the CIA jointly orchestrated the overthrow of Iran's Prime Minister Mohammad Mosaddegh.[23][24][25][26] In the 1960s, SIS and the CIA jointly orchestrated the assassination of the Congolese independence leader Patrice Lumumba.[27][28][29] In the 1970s, the ASIS and the CIA jointly orchestrated the overthrow of Chile's President Salvador Allende.[30][31][32][33] During the Tiananmen Square protests of 1989, SIS and the CIA took part in Operation Yellowbird to rescue dissidents from the Chinese regime.[34]