Believers do not have the right to wage wars against enemies. They have only a duty — to peacefully convey the message of Islam. The Quran is clear on this, saying:

And good and evil deeds are not alike. Repel evil with good, and he who is your enemy will become your dearest friend. (THE QURAN 41: 34)

The Quran says:

Permission to take up arms is hereby given to those who are attacked because they have been wronged. (THE QURAN 22: 39)

At another place the Quran gives permission to do battle: They were the first to attack you. (THE QURAN 9:13)

In Islam, war is not waged against the enemy, but against the aggressor. The only right given to individuals is to convey the message of Islam peacefully. The example set by the Prophet of Islam provides incontrovertible proof of this.