campaign against the Japan-US Security Treaty (1959-60, 1970)
Historical term referring to the large-scale protests and political movements opposing the revision and renewal of the Japan-US Security Treaty, particularly in 1959-60 and 1970.
The Anpo struggle is known as one of the major social movements in postwar Japan.
During the 1960 Anpo struggle, large-scale demonstrations took place around the National Diet.