Sailors and marines' rigorous coronation rehearsals in Portsmouth

Rehearsals and drills are being practised on repeat for every aspect of their roles, as sailors and Royal Marines prepare for King Charles III's coronation.

On the day, 900 Royal Navy sailors, officers and Royal Marines will parade or line the streets, with 300 more in supporting roles for their once-in-a-lifetime experience.

Skills and drills will continue to be honed until the big day itself when the whole world will be watching.

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As shown in the video above, from right across the service, all ages, trades and experiences are involved, and the nerves are building for the big day.