SAC

supporting arms coordinator

NSFS

naval surface fire support

What are the 5 phases of amphibious operations?

Planning
Embarkation
Rehearsal
Movement
Assault

COSMEC

communications security

Principal characteristics to be considered in the objective area include:

1. Terrain
2. Weather
3. Electromagnetic environmental effects (E3)

This phase is the period for testing the adequacy of plans, the timing of detailed operations, the adequacy of communication systems, and the combat readiness of participating forces, ensuring that all participating units are intimately familiar with the plans.

rehearsal

This net is used for requesting and assigning fire support ships, relief and emergency reports, and disseminating orders pertinent to the execution of scheduled fires.

NSFS Control Net (High Frequency)

The purposes of this net are control of individual ship NSFS and to call and adjust fire.

NSFS Ground Spot Net (High Frequency)

This net is activated when amphibious operations employ two or more attack and landing groups for overall control of NSFS.

Overall NSFS Control Net (High Frequency)