Complex sentence: The British Government is refusing to make the site a war grave under the Protection of Military Remains Act 1986 despite Freedom of Information documents proving this could be achieved, although the French Government recently placed an exclusion zone around the wreck site.
Split into simpler sentences: The British Government has refused to make the site a war grave under the Protection of Military Remains Act 1986 although documents obtained under the Freedom of Information show that it could be done. The French Government recently placed an exclusion zone around the wreck site.