The Football War was fought between which two countries?

The Football War (Soccer War or the Hundred Hours' War also known as 100 Hour War) was a brief war fought between El Salvador and Honduras in 1969. Existing tensions between the two countries coincided with rioting during a 1970 FIFA World Cup qualifier.

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 (hence "100 Hour War"), which took full effect on 20 July. Salvadoran troops were withdrawn in early August.