Football War – Wikipedia

The Football War (Spanish: La guerra del fútbol; colloquial: Soccer War or the 100 Hours 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.

: https://en.wikipedia.org/wiki/Football_War