Whether soldiers stationed on borders should take the ruling of travelers regarding Salah or they should offer Salat-ul-Khawf
According to the Sunnah (whatever is reported from the Prophet),
soldiers who are stationed on borders have to perform Salah in the same manner of Salat-ul-Musafir (Prayer of a Traveler), and not Salat-ul-Khawf (Prayer in times of fear). They have to offer every Salah at its due time, but they have a Rukhsah (concession) to combine two Salahs (Prayers) at the time of the earlier or the later one. The rulings of travelers apply to them, because, as mentioned, they do not know the duration of their stay. However, it is better for them not to combine two Salahs together. (Part No. 6; Page No. 434) May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.