Across
1
Military blockade of a fortified place
4
Formal agreement between nations
5
Period of one hundred years
6
Practice of establishing foreign colonies
7
Armed entry into another territory
8
Government ruled by a king or queen
Down
2
Ancient Egyptian stone monument
3
Sudden overthrow of a government
9
Metal that replaced bronze in tools
10
Person who travels to discover new lands
11
Relating to the Middle Ages