it lasted aproximatley 4 years, from the attack on pearl harbour, to the dropping of the atomic bomb (Sunday, December 7, 1941 at 7:55 AM to On 14 August 1945 (US date) or, 15 August 1945 in Japan, the difference is caused by the International Dateline).
From 2 June 1899 until 4 July 1902 with the Moro Rebellion continuing until 1913.
The war with Tripoli lasted five years
The war with Tripoli lasted five years
5 years
9 month
9 month
About 6 years
1861 to 1865
eight years.
2yrs
6 years
3 years.
12 Days