expeditionary

形容词 expeditionary:

1. (used of military forces) designed for military operations abroad

ex.pe.di.tion.ar.y

adj.（形容词）
Relating to or constituting an expedition.
考察的：同考察有关的或组织一次考察的
Sent on or designed for military operations abroad:
远征的：为在国外的军事行动而谋划或派遣的：
例句：
the French expeditionary force in Indochina.
在印度支那的法国远征军