一陣[ichijin] gust of wind
円陣[enjin] forming a circle
共産陣営[kyousanjinei] the Communist camp
軍陣[gunjin] camp
軍陣医学[gunjinigaku] military medicine

経営陣[keieijin] the management ranks
堅陣[kenjin] stronghold
殺陣[tate] sword battle (staged for television, etc.)
主陣地[shujinchi] main battle area
出陣[shutsujin] departure for the front