A mosque is the sacred place of worship in the Islam faith. So, mosques were built immediately in conquered lands in order to establish a common place for the Muslim community to gather and pray. Mosques would be the first buildings constructed in these conquered lands because of the importance of religion within the Muslim community. Mosques were essential, because upon reaching adulthood, Muslims had compulsory (or obligatory) prayer in mosques, meaning that they absolutely needed these sacred buildings in order to carry out their faith.
