What are the two types of unloading used in amphibious operations?

In amphibious operations, the two types of unloading are general unloading and selective unloading. General unloading refers to the process where all available cargo, personnel, and equipment are unloaded in a broad and unrestricted manner, typically to establish an initial presence and operational capability on land. This approach allows for a rapid buildup of forces, facilitating immediate operational needs.

Selective unloading, on the other hand, is a more targeted method where specific items are prioritized for unloading based on the mission requirements. This allows commanders to control the flow of resources more effectively, ensuring that critical assets reach the operation area first. Overall, the combination of these two types of unloading supports both the immediate and sustained operational needs during amphibious operations, allowing for flexibility and efficiency in how forces are projected from sea to shore.