Zomax

Zomax uses a double sided metal hinged board and magnetic pieces representing tanks, ships and planes to represent a nation in turmoil. Normally 2 players (but it can be teams of people) sit on opposite sides of the board and take turns moving their units in an effort to capture the capitol which is placed somewhere on the board. All initial placement of pieces is secret. Movement is based on a dice roll, moving any combination of pieces a number of spaces equal to the total of the dice roll. If you drop a piece of your opponents (the magnets will repel each other and push the piece off the other side of the board), then your movement ends. There are mines that will destroy any piece that comes in contact with it. The first person to hit the capitol wins the game.

Another similar but officially unrelated game was released in the 1960s: Strategic Command.