一軍[ichigun] an army
１等軍曹[ittougunsou] sergeant first-class
一泊行軍[ippakukougun] an overnight march
援軍[engun] reinforcement
海軍[kaigun] navy

凱旋軍[gaisengun] returning victorious army
救世軍[kyuuseigun] Salvation Army
共産軍[kyousangun] communist army
郷軍[gougun] veteran
空軍[kuugun] Air Force

愛郷[aikyou] love for one's hometown
愛郷心[aikyoushin] love of one's hometown
異郷[ikyou] strange land
家郷[kakyou] one's homeland
郷に入っては郷に従え[gouniittehagounishitagae] when in Rome, do as the Romans do

郷軍[gougun] veteran
郷愁[kyoushuu] nostalgia
郷土[kyoudo] native place
郷土小説[kyoudoshousetsu] local story
郷土料理[kyoudoryouri] local cuisine