The Football War, also known as the Soccer War or the 100 Hour War, was a brief military conflict fought between El Salvador and Honduras in 1969. Existing tensions between the two countries coincided with rioting during a 1970 FIFA World Cup qualifier, hence its nickname. The war began on 14 July 1969 when the Salvadoran military launched an attack against Honduras. The Organization of American States (OAS) negotiated a cease-fire on the night of 18 July. Salvadoran troops were withdrawn in early August.