COL. Tony Corwin, Commanding Officer of the Special Purpose Marine Air Ground Task Force (SPMAGTF) Liberia, addresses troops two days prior to landing in Liberia. SPMAGTF Liberia, a II Marine Expeditionary Force (MEF) unit from Camp Lejeune, NC, will take over the duties of the 22nd Marine Expeditionary Unit (MEU) at the US Embassy in Monrovia