Britain's Prince Harry addresses a service of commemoration for victims of the 2015 terrorist attacks in Tunisia at Westminster Abbey in London on April 12, 2016.
In 2015 there were two  attacks in Tunisia in which British citizens died, at the Bardo National Museum on March 18 and on the beach at the Port El Kantaoui resort on June 26. The service commemorated the British nationals who were killed during the attacks. / AFP / POOL / JUSTIN TALLIS        (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)