What is the ruling on preventing Muslim women from wearing the hijab in Christian schools in Gambia, given that the government approves of this ban?

One must be wary of missionary schools that might influence children and corrupt their faith. If these schools prohibit the Islamic headscarf (hijab), then it is even more imperative to prevent entry into them. Allah will compensate for this with something better, as He says: "And whoever fears Allah - He will make for him a way out" and "And whoever fears Allah - He will make for him ease in his affair." And the Prophet, peace and blessings be upon him, said: "Indeed, you will not abandon anything for the sake of Allah, the Mighty and Majestic, except that Allah will replace it with something better for you than it."