No army can win a battle if they do not know the enemy. I believe that Christians need to study and understand other religions. Their drivers, their tenets and the mindset of their followers in order to hold their ground at the very least. There are many transcripts of how muslims have left their faith after being shown the Truth of Who the Messiah Yeshua really is. Those life changing decisions have been the result of Holy Spirit intervention [of course], much prayer, the knowledge of scripture and also, most importantly, an awareness of where the muslim is coming from. Take a look at: Barnabus Fund and their literature to see how effective this can be and has been, from their founder Patrick Sookhdeo onward.
Real Bereans [Acts 17:11] are truly needed; watchmen must warn; evangelists must compel; DO NOT BE DECEIVED and watch that periphery!
God bless you and God bless Israel ... KJS ... 01-April-2013