Across
1
Military conflict or fight
5
Territory controlled by another country
6
Government elected by the people
7
Ancient Mesoamerican civilization
11
Metal that replaced bronze in tools
12
Military blockade of a fortified place
Down
2
Formal agreement between nations
3
Roman arena fighter
4
Union formed for mutual benefit
8
Movement of people to new areas
9
Practice of farming and growing food
10
Exchange of goods between peoples