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).