text: Chapter 7
  While capable of deploying over strategic distances, Army watercraft are not strategic lift platforms, but they
  are a critical link between strategic lift and land-oriented tactical movements. Army and Navy engineering
  assets are critical to the establishment and maintenance of port facilities.
  ESTABLISH PROTECTED RECEPTION, STAGING, ONWARD MOVEMENT, AND INTEGRATION
  7-65. During armed conflict in a maritime operational environment, theater opening and RSOI vary to meet
  mission requirements of the JFC. The theater engineer command is responsible for developing and
  maintaining the necessary infrastructure (including ports and roadways) that support RSOI and follow-on
  operations. Multiple islands requiring multiple ports will increase the demand for specialized engineer and
  sustainment formations to construct, develop, maintain, and operate them.
  7-66. Rather than gaining efficiencies from a consolidated location, the theater army may be required to
  support multiple JSAs and RSOI sites. Using multiple RSOI locations increases the overall signal,
  sustainment, protection, and maneuver requirements for the theater. An often-overlooked component of
  RSOI is the mandatory combat training that needs to be conducted. TSC personnel do not conduct this
  training; a maneuver force must provide the personnel. More RSOI locations require more trainers.
  7-67. Multiple JSAs and JOAs will likely require the theater army to request additional signal assets to
  support the theater signal brigade as they develop the necessary C2 architecture to support operations. Both
  the strategic signal brigade and the tactical signal brigade will require significant augmentation to support
  the theater and JOA communications network. Army forces maintain coastal, harbor, and inland waterway
  defense while accounting for extended deployment times. Critical protection, firepower, and mobility assets
  may also be disbursed across numerous islands in the AOR and in the JOA, requiring detailed coordination
  and reconfiguration of loads prior to embarkation.
  Note. Given the varying nature of islands and maritime environments where Army forces may
  operate, there are many scenarios where RSOI take place outside the JOA, and onward movement
  for Army forces may occur just prior to the execution of a forcible entry operation to an island.
  This may also change from island to island, depending on the enemy situation.
  7-68. In a maritime environment, reception, staging, and integration activities may need to occur prior to
  onward movement into a JOA. The process of securing and uploading unit basic loads, addressing life support
  for personnel, or reconfiguring underway must occur prior to debarking directly into combat. Units that
  require extensive support for staging, including maintenance or cross-loading of supplies critical to
  survivability (Class IV and Class V items), may require an intermediate staging base outside the JOA before
  continuing on to their debarkation point. Additionally, units may execute onward movement out of sequence
  from reception, staging, and integration. Units may need to conduct integration during embarkation or during
  a reconfiguration at an intermediate base outside the JOA.
  7-69. RSOI may occur from sea bases. Seabasing is the deployment, assembly, command, projection,
  sustainment, reconstitution, and reemployment of joint power from the sea without reliance on land bases
  within the operational area (JP 3-02). Seabasing provides Army forces with the ability to conduct certain
  functions and tasks at sea without dependence on infrastructure ashore, and it minimizes the need for
  stockpiles ashore while positioning joint forces for immediate employment. Seabasing requires detailed
  collaborative planning between joint forces, but it can provide a secure base of operations with C2 capability,
  and it minimizes the requirements ashore for an initial port and airfield to support missions. (See JP 3-02 for
  more information on considerations for planning and executing staging operations from sea bases.)
  CONDUCT THEATER SUSTAINMENT OPERATIONS
  7-70. Theater sustainment in a maritime environment is a highly collaborative process. When directed to
  provide management of common sustainment functions that include other Services, the TSC leads the joint
  sustainment planning board. Army forces provide theater and port opening functions for joint forces to
  maintain strategic and operational reach. Theater sustainment plans must account for—
  (cid:122) Maritime movement of Army pre-positioned stocks (APS).
  (cid:122) Joint logistics over-the-shore (JLOTS).