allied · adjective /ˈæl.ɑɪd/
allied
C2 joined by a formal agreement
Dictionary example:
the allied powers
Learner example:
During the Second World War, he joined the US Navy and was then sent on a mission to Brazil with the aim of patrolling the coasts to avoid a German bombing [of] allied ships. (Certificate of Proficiency in English; C2; Portuguese)
