Fortification Purchase Points (T15.6143, O11.2)
Points spent on digging in. Both sides use FPP to buy fortifications for their own Setup Areas: trenches, bombproofs, Fortified Building Locations, wire, tetrahedra. At Tarawa the Japanese earn two FPP per Korean squad-equivalent in their Setup Area each RePh and the Marines earn one per Assault Engineer squad, so labor literally buys the defenses.

