Across
1
Formal agreement between nations
3
Union formed for mutual benefit
5
Relating to the Middle Ages
6
Territory controlled by another country
7
Alloy of copper and tin used in early tools
8
Period of one hundred years
11
Military conflict or fight
12
Handwritten historical document
Down
2
Armed entry into another territory
4
Medieval land-for-service system
6
Medieval religious military campaign
9
Person owned as property
10
Deadly epidemic disease