Nuclear weapons against mankind happened in 1945. Other than that it has not happened again.
two
Tank Wars happened in 1990.
The location is sometime in the 24th century; there have been two atomic wars since 1990 and the place is in and around an unspecified city.
Sunni and sh'a
One thing is that since the age of atomic weapons there has not been any more world wars.
70,000 dead
The Indian Wars, World War I, World War II, Korea, Vietnam, Gulf War (1990), and the Iraq War.
Tank Wars was created in 1990.
computer animation (like CGI)
Yavapai Wars happened in 1861.
Space Wars happened in 1977.
Everytime since December 1941. That month and year was the last time the US declared war. The atomic age commenced in August 1945; declared wars have traditionally meant total wars & TOTAL wars can no longer be fought in the atomic age (nuclear age)...without the risk of "mutually assured destruction."