How should members of military units pray on the front line?

Praise be to Allah.

If the soldiers mentioned are in the place where they live, and are not traveling, then they have to pray Jumu’ah and pray the four-rak’ah prayers in full. But if they are traveling to the frontier then they do not have to pray Jumu’ah and they can shorten and combine prayers, because they do not know how long they will be there or when their tour of duty will end. May Allaah help us all to do that which He loves and which please Him.