Exciting news this week from the Royal Navy: there is now “No sea too deep for female submariners.” Three women have just made British maritime history as the first females to join the Royal Navy Submarine Service.

Although women have served in the Navy since 1993, they were banned from the Submarine Service; this was due to the long-held view that women were more at risk if there was a build-up of carbon dioxide in submarines. After a medical study by the Navy’s own Institute of Naval Medicine, the ban was lifted in December 2011 for all women except those known to be pregnant.

We salute you, Lieutenants Maxine Stiles, Alexandra Olsson and Penny Thackray: the ‘Subfragettes’, as they have been called on Twitter.