Someone who is on ~ is taking part in a war as a member of the armed forces. (mainly BRIT)
In April 1944 he was killed on ~...
N-UNCOUNT: oft on N
Someone who is on ~ is taking part in a war as a member of the armed forces. (mainly BRIT)
In April 1944 he was killed on ~...
N-UNCOUNT: oft on N
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012