The Crusades is the series of wars between the two groups but if you're looking for a certain one I can further elaborate.
It would be the development in agricultural knowledge/technology
Development in agriculture enable hunter/gatherer society to shift their behavior. Before this, they had to keep moving from one place to another in order to seek food to live.
After the development in agricultural knowledge/technology, the society now can stay in one exact place for a long period of time and relied on agricultural product as their main source food.
After living in one same place for a long time, the needs to build things to accommodate their living start to arise. They start to built several things and repeat the process every year. In the end, large cities were developed from the initially small hunter/gatherer society.
germant and its allies fought the soviet union
A Patriot
Patriots were those colonists of the Thirteen Colonies who rejected British rule during the American Revolution and declared the United States of America as an independent nation in July 1776.
Stephen Douglas won the Illinois Senate seat despite Abraham Lincoln won the popular vote because the Democrats won more seats in legislature and they re-elected Douglas. During 1858, Senate Elections results lie not on the hands of the people but on the state legislature. Hence, even if Lincoln got the most votes from people, Douglas still emerged as the winner.
