In the western world it's a slow process of infiltration. When numbers get high enough, Muslims start demanding Muslim law. The strongest example in the US at this time is Dearborn, Michigan.
Europe, on the other hand, has an extremely high instance of Islamic takeover. Country by country, Islam has infiltrated. America is not immune.
This is God v the enemy. Pray and stay on the forefront of the battle...we ARE the soldiers of The Lord.