i don't think force is required. contrary to popular myth and recent pseudo-science, cultural identity is not something inborn or inherent to the individual but a consequence of hegemonic conditioning. people tend to very happily convert by free choice, if conversion provides them with opportunity.
the reality is that the palestinians in the west bank are almost entirely hebrews with jewish roots that converted to islam because converting to islam gave them economic advantages. the israeli state should ensure that converting back to judaism is beneficial to the population in the west bank, and watch them do so, without needing to put a gun in their back.