Prince Harry is due to visit Estonia and Italy to meet veterans of World War II.
Organised by the Foreign Office, the tour would include Prince Harry laying a wreath at the monument to the War of Independence in Freedom Square in Tallinn, Estonia.
He will then attend a reception at the Estonian parliament and meet MPs and wounded veterans who are due to take part in the Invictus Games, an international sporting event for wounded, injured and sick service personnel. The event, launched by the prince, will take place in London in September.
In Italy, Prince Harry will attend a number of events commemorating the Allied campaign in Italy during World War II, focusing on the 70th anniversary of the Battles of Monte Cassino and will lay wreaths to honour the fallen soldiers of Poland, New Zealand and Britain.
The four battles of Monte Cassino took place between January and May 1944 and involved some of the most brutal fighting of the war.
During the trip, Harry will visit the Abbey of Monte Cassino, the original sixth-century Benedictine Monastery was destroyed during the battles in 1944 and rebuilt a decade later.
He is scheduled to meet wounded Italian veterans, some of whom will be taking part in the Invictus Games.
The visit will also take the prince to Rome, where he will attend an event at the Maxxi National Museum of Contemporary Arts and unveil the winning design for the UK pavilion at Milan Expo 2015.