Additionally, the Squadron has the implied mission to supplement airbase facilities and services at Marine Corps Air Station Iwakuni, with support routed through MAG-12 for tasking.

In 1992, elements of Marine Wing Support Squadron 171 assisted in the final retrograde of personnel and equipment from Subic Bay Naval Base and Cubi Point Naval Air Station, located just 40 km to the southwest of the volcano.

Elements of MWSS-171 served among the almost 30,000 US military personnel that participated in Operation Restore Hope in Somalia in 1992, returning home to MCAS Iwakuni in May 1993.

A small detachment was also sent to Sendai to assist in cleanup, as well as provide shower support for refugees.

MWSS-171 has conducted multiple exercises in the Pacific, showcasing its ability to support Marine Aircraft Groups in expeditionary environments and conditions.