David,
May our Lord keep you safe. May He comfort your family in your absence. May He bless you for your service.
I met Jeb Bush a few years ago. He told me he prays the rosary everyday. If you are Catholic you will know what an awesome tool of God the rosary is. Especially against Islam. It is said that the Christian victory at The Battle of Lepato was partially due to an appearance of the Virgin Mary. If I remember the Rosary was revealed to St. Dominic during a time of Islam vs Christian conflict.
But I know no matter your denomination God will bless and keep you. He will be at your side and His angels will guard you.
The Rosary was already prayed at the time of LePanto. Pius V asked that it be prayed for victory, and of course we know how that went. Afterwords, the Feast of Our Lady of the Rosary was instituted in thanksgiving for God's great mercy. (I attend a Dominican Parish, have for 22 years so the story's been heard several times...)