For us in America, we do learn some amount wars before the time of America. Despite this emphasis on wars, though, we tend to miss important ones regardless. I'm a history buff, so I was curious if a world or more educated perspective could provide a more complete look.
Wars Americans who've had a standard Education Know About
Anything America was involved in (Though often gets renamed. Seven years war became French Indian. Napoleonic Wars became the war of 1812. Classy America.)
Battle of Tours and the repulse of Islam from the Christian Europe.
Vague, nebulous understanding of Roman Campaigns and conquest.
Cortez, his native allies, and the Aztecs
100 Years War and the Rebellion of the Netherlands from the Spanish
Alexander the Great's Campaign.
This List is much shorter than I expected. I tried to remove things I got because my History Teacher was a huge sinophile, at least of Chinese history, so learned a LOT about China that probably is missed in most classrooms. I'll refrain from talking about wars I know, but most of them relate to Russia in some way.