How to Stop Islam : Make Balkan Great Again

*have them ally Russia on the north *have the allies hold North Africa *establish a strong Balkan, Anatolia and Minor Asia, Caucasus *border countries shield the holy land whilst inland Christian countries prepare for the worst and supply the border countries with guns and other supplies *manpower shuffles from border country armies to inland countries to both muster experience, reduce tiredness, have full strength divisions and have time to train new troops if necessary *DEUS VULT