Complex sentence: However, the enquiry did find that British soldiers mistreated nine Iraqi prisoners, but it was not deliberate ill-treatment, and that the ill-treatment was much milder than the initial accusations of torture, mutilation and murder.
Split into simpler sentences: However, the enquiry did find that British soldiers mistreated nine Iraqi prisoners, but not deliberately. It stated that the ill-treatment was much milder than the initial accusations of torture, mutilation and murder.