The future king - Colonel-in-Chief of the Mercian Regiment - wore his full military uniform for the visit to Tapa Camp in Estonia as he took part in a trench warfare exercise

Prince William has visited the Tapa military base in Estonia to meet British troops defending the country from Russian aggression as part of NATO forces as the war in Ukraine rages

If royal visits are about sending a message, then the picture of the Prince of Wales in a tank near the Russian border must be one of the most direct. Prince William has come to Estonia to support UK troops in what is now the British Army's biggest operational deployment overseas,