expeditionary

/ˌɛkspəˈdɪʃəˌnɛri/
adjective
  1. Relating to or forming part of a military force sent on a mission abroad.
    • Many soldiers in the expeditionary unit had trained for jungle warfare.
    • The country sent an expeditionary brigade to assist in peacekeeping operations.
    • The expeditionary force was deployed to the conflict zone to provide humanitarian aid.
  2. Relating to any organized journey or mission, especially one involving travel to a distant place.
    • They joined an expeditionary group studying volcanic activity in Iceland.
    • The expeditionary team carried specialized gear for the Arctic crossing.
    • The museum displayed artifacts from early expeditionary voyages to the Pacific.
Synonyms