(DoD) In amphibious operations, an area to seaward of a transport area from which assault shipping is phased into the transport area, and to which assault shipping withdraws from the transport area.
Department of Defense Dictionary of Military and Associated Terms. 31 January 2011.
| APA | Military Dictionary (DoD). (2011). sea echelon area. Retrieved September 30, 2026, from http://smartdefine.org/sea_echelon_area/definitions/1963858 |
| Chicago | Military Dictionary (DoD). 2011. "sea echelon area" http://smartdefine.org/sea_echelon_area/definitions/1963858 (accessed September 30, 2026). |
| Harvard | Military Dictionary (DoD) 2011, sea echelon area, Smart Define, viewed 30 September, 2026, <http://smartdefine.org/sea_echelon_area/definitions/1963858>. |
| MLA | Military Dictionary (DoD). "sea echelon area" 4 April 2011. Web. 30 September 2026. <http://smartdefine.org/sea_echelon_area/definitions/1963858> |