The two requirements for a country to be part of Dar al-Islam were, according to the founder of this concept, Abu Hanifa, the following: 1. * That Muslims must be able to enjoy peace and security with and within this country. 2. * That Islamic countries have common frontiers with other Muslim countries. If the former does not apply, then physical means (such as Jihad) can be used to correct the situation. And, in the latter case, individuals are required to do hijra to countries where they can practice their religion.