Fourth Anglo-Dutch War happened in 1780.
War of the Fourth Coalition happened in 1806.
Yakima War happened in 1858.
Babylonian War happened in -311.
War of the Regulation happened in 1770.
Kazan War happened in 1552.
Fourth Macedonian War happened in -150.
Fourth Anglo-Mysore War happened in 1798.
War of the Fourth Coalition happened in 1806.
The duration of The Fourth War is 1.52 hours.
The Fourth War was created on 1990-03-23.
The Fourth World War was created in 2003.
The fourth Arab-Israeli War began in October 1973.
There hasn't been a confirmed source about a fourth, but it MIGHT happen. The titles (that have not been confirmed) are either Clash or War.
Fourth Battle of Tucson happened on 1784-03-21.
Fourth Battle of Topolobampo happened on 1914-06-16.
Fourth Enemy Offensive happened on -19-03-01.
Fourth Amendment of the Constitution of Ireland happened in 1972.