9 years
the rev war was 7 years long
7 years
9 years
20 years if you don't count the war of Prohibition (7 years)
7 years
7 years 7 years 7 years 7 years 7 years 7 years 7 years 7 years
The Seven years war
Seven years' war
7 to 12 years
The cowboys and Indian war
Lasted between 1754 and 1763 9 years. The extra 2 years are really the build up to the war, real war fighting began in 1756, so it really all depends on the way you look at it.
The 7 years war.