text: Sustainment Operations in a Maritime Environment
  conducted jointly or individually by Army and Navy forces. See ATP 3-18.12, ATP 4-15, and JP 3-32 for
  additional information on riverine operations.
  6-67. Figure 6-2 depicts a notional example of Army watercraft executing riverine operations from the
  littorals in a maritime environment. In this example, the landing craft, utility and maneuver support vessel,
  light demonstrate the Army’s ability to conduct riverine operations to move troops and cargo from afloat and
  the littorals to inland locations. Army watercraft also provide the capability to support the egress of troops
  and cargo using inland waterways once operations are complete.
  Figure 6-2. Notional Army watercraft conducting riverine operations