Fath-e-Islam (The Victory of Islam) is an Urdu treatise penned in 1890 by Hazrat Mirza Ghulam Ahmad^(as), the Promised Messiah and Mahdi. It outlines the Divinely ordained strategy to combat the aggressive misinformation campaigns orchestrated by the Christian missionaries throughout the Muslim world. Accordingly, the Promised Messiah^(as) implemented the following five branches:

1. Publishing books
2. Distributing leaflets
3. Hosting guests and visitors in search of truth
4. Replying to letters of inquiry
5. Establishing a community through bai‘at (initiation)

Through these five initiatives, the Promised Messiah^(as) was not only able to effectively defend Islam and the Holy Prophet Muhammad^(sa) against the widespread slanders, but he also took the offensive by exposing the fundamental weaknesses of the Christian faith and its deviations from the true teachings of Jesus^(as).