Airport
An airport can send 10 planes to your neighbour countries and help them defending when they are under attack. Cash: 15000 Wood: 50 Steel: 75 Food: 0 Networth: 20 Building time: 14400
Income: Cash: 0 Wood: 0 Steel: 0 Food: 0	Upkeep: Cash: 0 Wood: 0 Steel: 0 Food: 0

Harbor
An harbor can send 1 ship to your neighbour countries and help them defending when they are under attack. Cash: 25000 Wood: 600 Steel: 150 Food: 0 Networth: 15 Building time: 28800
Income: Cash: 0 Wood: 0 Steel: 0 Food: 0	Upkeep: Cash: 0 Wood: 0 Steel: 0 Food: 0

Train Station
An Train station can send 25 soldiers and 1 tank to your neighbour countries and help them defending when they are under attack. Cash: 10000 Wood: 500 Steel: 750 Food: 0 Networth: 10 Building time: 10800
Income: Cash: 0 Wood: 0 Steel: 0 Food: 0	Upkeep: Cash: 0 Wood: 0 Steel: 0 Food: 0