A PRAYER BOOK FOR SOLDIERS AND SAILORS
I found this interesting publication, issued by the Protestant Episcopal Church of the United States of America during World War II for those in the Armed Forces. I commend especially the prayer chapter, for there are many there that I've not seen before. One example, a Collect for Loyalty, is shown below the link. If you have loved ones or comrades who are serving in a hostile environment, they might appreciate some of these.
Almighty God, grant us thy gift of loyalty. For our homes, give us love and obedience; for our country, sacrifice and service; for our Church, reverence and devotion; and in everything make us true to thee; through thy Son, our Saviour Jesus Christ. Amen.