The Second World War II!

[vontsira]

@Little_Nemo

There was the naval war in the Pacific: World War Aye Aye.

Or the largely lethal competition over millennia, between more and less advanced primates; ending with the lemurs marooned on Madagascar, and, all-but, surviving there only – Aye-aye - Wikipedia

[Stringbean]

It was The Great War and World War II.