3帰国（きこく）
return to your country
5無事
Safety, without incident; successfully
6ごぶさた
not writing (or contacting for a while; neglecting (failing) to write (call, visit, etc.); long silence)
7何とか
somehow; anyhow; one way or another
10昇進（しょうしん）
promotion; advancement; rising in rank
11辞める
to resign; to retire; to quit; to leave (one's job, etc.)
13異動（いどう）
(personnel) change; transfer; relocation; reassignment; reshuffle