Your defense as a christian against the attacks of the enemy:

Eph 6  (v. 11) Put on the whole armor of God, that you may be able to stand against the wiles of the devil.

It all starts out with prayer!!

Mark 1  (v. 35) Now in the morning, having risen a long while before daylight, He went out and departed to a solitary place; and there He prayed.

So Jesus started His day off with prayer, as are we to do so also.

We are soldiers of Christ; and those who enlist in His army are expected to do difficult work, work which will tax their energies to the utmost.  We must understand that a soldier's life is one of aggressive warfare, of perseverance and endurance.  For Christ's sake we are to endure trials.[1]  

We are not engaged in mimic battles.  We have to meet most powerful adversaries; for "we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high places." (Ephesians 6:12).[1]

We are to find our strength  just where the early disciples found their strength: "These all continued with one accord in prayer and supplication." "And they were all filled with the Holy Ghost, and they spake the word of God with boldness. And the multitude of them that believed were of one heart and of one soul." (Acts 1:14; 4:31, 32).[1]  

And because of your status as a child of God, stand against the enemy in spiritual warfare[2] with:

Eph 6  (v.16) above all, taking the shield of faith with which you will be able to quench all the fiery darts of the wicked one.  (v. 17) And take the helmet of salvation, and the sword of the Spirit, which is the word of God.

Why do we put on all of this armor if we never go into battle?  What is it for?

How did Jesus participate in this spiritual warfare?

Mark 1  (v. 23) Now there was a man in their synagogue with an unclean spirit. And he cried out, (v. 24) saying, “Let us alone! What have we to do with You,...” (v. 25) But Jesus rebuked him, saying, “Be quiet, and come out of him!”

(verse 27) Then they were all amazed, so that they questioned among themselves, saying, “What is this?  What new doctrine is this?  For with authority He commands even the unclean spirits, and they obey Him.”

Noticed that He didn't pray the demon out, but rather rebuked & commanded with authority!!

This appears to be how "we" as christians, are to participate in the spiritual warfare[2] that is around us.

First we pray, then we exercise our authority to rebuke & command, in the name of Jesus!!

Luke 10  (v. 1) After these things the Lord appointed seventy others also, and sent them two by two before His face into every city and place where He Himself was about to go.

(verse 17) Then the seventy returned with joy, saying, “Lord, even the demons are subject to us in Your name.” And He said to them,...(v. 19) Behold, I give you the authority to trample on serpents and scorpions, and over all the power of the enemy, and nothing shall by any means hurt you.

Anybody wanting to receive more information or training about this topic can contact:

References:

1. Testimonies for the Church (vol.6), p.140, par.2

2. http://www.bible-knowledge.com/spiritual-warfare-demonic-attacks/