Where to crusade?

Any blood-shedding crusades are totally away from the teaching of Christ. Crusade is to be operated within oneself for holistic transformation (Romans 12:1-2), not to inflict swords onto people.

Don't ever physically get involve into spiritual war fair, we are not on this role and nor are we being called because sinners we cannot. It's a war between God/Christ (God became flesh and blood) and Satan for God to redeem people. A deal between God and Satan since Genesis from the fall of mankind (Genesis 3:15), and already fulfilled when Christ bore sin of the world and died on cross (John 19:31-37 ), then resurrected. Now is a moment of grace period allowing people to reconcile with our Heavenly Father through Christ by knowing oneself and God more each day and allowing Holy Spirit to transform and mold oneself - for people who believed and follow Him will have everlasting lives by reconciling with Heavenly Father. Then, the completion of the war to be fulfilled as stated in the book of Revelation. In an "extremely simplified analogical" sense, it is “The Chronicles of Narnia” by C.S. Lewis, I think there's a Disney cartoon movie (http://disney.go.com/disneypictures/narnia/) if the book is too thick for anyone.

There are many spiritual battles, but not the war, within ourselves that we will get involved, which Holy Spirit will help us to survive by strengthening us through trials. I think the "battle winning indicator" base on: Galatians 5:19-23 "...fruit of the Spirit is love, joy, peace, patience, kindness, goodness, faithfulness, gentleness and self-control".