© Slovak Post, 2007 The field post appeared in the history of post and postal services at the origin of message transport. In the middle ages, couriers using postal lines delivered military messages. Archive evidence, however, testifies that alternative postal lines were necessary during wars. The first military postal line was established in 1496 during the Italian war of Maximilian I. Later, provisional military postal lines were called the “field post”. Censor cancellation document the fact that the field post was censured. Soldiers in World War One and World War Two only used field postal cards. “Captive post” is a special type of field post that preserves important historical evidence and also philatelic specifics. After WW2, Slovak soldiers participated in many international supervisory or observer missions around the world. Until 1993 they were part of the Czechoslovak Army, and since that time they have been representatives of the Military Forces of the Slovak Republic. The first mission of Slovak soldiers took place in North Korea. The motif on the stamp presents the field post from the 20th century, while the FDC presents field post cancellation from this period and the method of post transport. The above documents are held in the collection of the Postal Museum in Banská Bystrica. Štefan Kollár