For a crash-course in the intricacies of Islam, these articles are essential reading.
Yehya Mousa, a Hamas legislator from Khan Younis in the Gaza Strip, writes:
Islam is not merely the enactment of laws but is preceded by a large-scale process of mobilization and education. Furthermore, sharia, or Islamic, law cannot be realized unless an independent and sovereign state is established, which is not the case at present. Therefore, we in Hamas are first concerned with completing the liberation of Palestinian land.