Ok, remember those units that you built back during Phase 3?. Its now time to place them on the board. Certain units can only be placed on the maps in certain locations and quantities. These are as follows:
1) New units may only be placed in territories which were originally owned by the nation and under their country at the start of their turn.
2) Infantry may only be placed in City territories originally owned by the nation.
3) All non infantry land units and aircraft units may only be placed in a territory with an Industrial Complex owned by that nation. (also see #1).
4) All ships can only be placed into a major port onwed by the nation. (also see #1).
5) Sonar units can only be placed onto ships in a sea zone adjacent to a territory with a port controlled by that nation.
6) Colonial cities. Units may also be built in colonial cities. Each colonial city has a limit to the number of units that may be built out of it each turn. That limit is equal to the number inside each colonial city. Infantry as well as ships built out of a major port and all items built out of an industrial complex will count against the colonial city's build limit.