Defense: captive balloon, radar, naval batery, antiaircraft, minefields

within part of building where it puts buildings, infantry, armor, naval, air and secrets.

should add another tab where I put defense where I would enter what I suggested

1. captives balloon, they can be built in a certain place and when planes pass to attack that area they would do a major damage they will be hurt by raising the level

2. Radar, the radar was a fundamental technological advance in World War II, would be fixed in one area and would increase its radius of observation. It would detect airplanes in flight and say the amount and the type.

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3. naval battery would be on the coast and would automatically attack the ships withintheir reach

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4.Antiaircraft fixed this as the captive balloons would do critical damage to enemy aircraft

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5.minefields these can be placed at a point and when passing a ground unit it will inflict damage

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