Britain's Prince Charles (R) and his wife Camilla (L) sign the guest book in the presence of Polish PM Donald Tusk (unseen) and his wife Malgorzata (unseen) in Warsaw, Poland, 15 March 2010. The Prince of Wales and The Duchess of Cornwall are on a three-day visit to Poland. EPA/BARTLOMIEJ ZBOROWSKI
Britain's Prince Charles (2R) and his wife Camilla (R) are welcome by Polish President Lech Kaczynski (L) and his wife Maria (2L) at the Presidential Palace in Warsaw, Poland, 15 March 2010. The Prince of Wales and The Duchess of Cornwall are with a three-day visit to Poland. EPA/Leszek Szymanski
Britain's Prince Charles (L) and his wife Camilla (2-L) together with Polish President Lech Kaczynski (2-R) and his wife Maria (R) attend a reception at the Presidential Palace in Warsaw, Poland, 15 March 2010. The Prince of Wales and The Duchess of Cornwall are on a three-day visit to Poland. EPA/JACEK TURCYK
Britain's Prince Charles (L) and his wife Camilla (2-L) together with Polish President Lech Kaczynski (2-R) and his wife Maria (R) attend a reception at the Presidential Palace in Warsaw, Poland, 15 March 2010. The Prince of Wales and The Duchess of Cornwall are on a three-day visit to Poland. EPA/JACEK TURCYK
Britain's Prince Charles (front) and his wife Camilla (back,unseen) arrive for the concert at The Fryderyk Chopin University of Music in Warsaw, Poland, 16 March 2010. After three days in Poland, the British royal couple are due to head to Hungary and the Czech Republic as they continue their tour of central Europe. EPA/GRZEGORZ JAKUBOWSKI
Britain's Prince Charles (L) and his wife Camilla (R) arrive for the concert at The Fryderyk Chopin University of Music in Warsaw, Poland, 16 March 2010. After three days in Poland, the British royal couple are due to head to Hungary and the Czech Republic as they continue their tour of central Europe. EPA/LESZEK SZYMANSKI
Britain's Prince Charles (L) and his wife Camilla (C) leaving after the concert at The Fryderyk Chopin University of Music in Warsaw, Poland, 16 March 2010. After three days in Poland, the British royal couple are due to head to Hungary and the Czech Republic as they continue their tour of central Europe. EPA/LESZEK SZYMANSKI
Britain's Prince Charles (R) and General of the Brigade Andrzej Przekwas (back) meeting with Polish troops preparing for the mission in Afghanistan and their families, while visiting Polish 1st Armoured Brigade in Wesola, Warsaw, Poland, 17 March 2010. It is the last day of the Prince of Wales and The Duchess of Cornwall visit to Poland. EPA/PAWEL KULA
Britain's Prince Charles (2-L) visiting Polish Army, 1st Armoured Brigade, in Wesola, Warsaw, Poland, 17 March 2010. It is the last day of the Prince of Wales and The Duchess of Cornwall visit to Poland. EPA/PAWEL KUKLA
Britain's Prince Charles and his wife Camilla pose for a family photograph with the troops from the Polish 1st Armoured Brigade in Wesola, Warsaw, Poland, 17 March 2010. It is the last day of the Prince of Wales and The Duchess of Cornwall visit to Poland. EPA/PAWEL KULA
Britain's Prince Charles (2-L) and his wife Camilla (L) visiting Polish 1st Armoured Brigade in Wesola with general of the brigade Andrzej Przekwas (R), Warsaw, Poland, 17 March 2010. It is the last day of the Prince of Wales and The Duchess of Cornwall visit to Poland. EPA/PAWEL KULA
Britain's Prince Charles (R) and his wife Camilla (2-R) visiting Polish 1st Armoured Brigade in Wesola with general of the brigade Andrzej Przekwas (background), Warsaw, Poland, 17 March 2010. It is the last day of the Prince of Wales and The Duchess of Cornwall visit to Poland. EPA/PAWEL KULA