Across
1
Armed entry into another territory
4
Deadly epidemic disease
7
Government by the people
8
Armed conflict between nations
9
Government elected by the people
11
Medieval land-for-service system
13
Exchange of goods between peoples
Down
2
Alloy of copper and tin used in early tools
3
Formal agreement between nations
5
Payment made to show submission
6
Roman arena fighter
10
Uprising against authority
12
Union formed for mutual benefit