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Originally submitted by Anonymous / Matt on Jun 04, 2010.
After dividing the class into teams, explain they are each a different army.
The first team will choose a prefecture, and then one person from that team will come up to the board and have 1-2 mins to write a different word for each of that prefecture's letter.
If the student can write a word for each letter, their team has 'conquered' that prefecture.
Teams may also challenge other teams for their prefectures. In which case one member from each team must create words for the prefecture, and the team that has the longest words wins.
Whichever team has the most prefectures at the end of the game is the winner!