The confrontation between Hamas and Faith in West Bank and Gaza Strip showcase the long challenges among nationalism and Islamism in Arab world. This confrontation is a symbol of two ideologies which had a concurrence in the history of Middle East. Despite this confrontation in the current days, the Islamist and nationalist forces had a consensus to make a combat against Israel as an occupied country in the beginning of its establishments. Meanwhile the new differences among Palestinian parties are so hard and violent which cannot be solved easily. Of course the idealism of Hamas and popularity of Faith could lead this dual confrontation to this result in which no one can eliminate the other and respecting the democratic values and conciliation with the political realities is the best ways for the two parties.