There is no compulsion in religion, so, why does Allah say: Fight those who do not believe in Allah?

The first verse reads: {There is no compulsion in religion; the truth has been made distinct from falsehood...} [154], establishes a great Islamic principle, which is the prohibition of compulsion in religion, whereas the second verse reads: {Fight those of the People of the Book who do not believe in Allah and the Last Day...} [155], tackles another issue related to those who prevent people from the way of Allah and stop them from accepting Islam. Thus, there is no real contradiction between the two verses. Surat at-Tawbah: 29. Surat al-Baqarah: 256.