Complex sentence: The rank structure of the corps is similar to that of the British Army with officers and other ranks recruited and initially trained separately from other naval personnel, since 2017 women are able to serve in all roles in the Royal Marines.
Split into simpler sentences: The rank structure of the corps is similar to that of the British Army with officers and other ranks recruited and initially trained separately from other naval personnel. Since 2017 women are able to serve in all roles in the Royal Marines.