Dektrijara Milito (1454–66)

La Dektrijara Milito (en germana Dreizehnjähriger Krieg; en pola wojna trzynastoletnia, nomita ankaŭ Milito de la Grandurboj, was a conflict that was fought in 1454–66 between the Prussian Confederation, allied with the Crown of the Kingdom of Poland, and the State of the Teutonic Order.

Prussian Confederation offered to incorporate Prussia into the Crown of the Kingdom of Poland, 1454, Central Archives of Historical Records, Warsaw

Pola infanterio, 1447–92

The war began as an uprising by Prussian cities and local nobility to win independence from the Teutonic Knights. The Prussian Confederation asked Poland's King Casimir IV Jagiellon for help and offered to incorporate Prussia into the Kingdom of Poland. When the King assented, war broke out between Poland, supporting the Prussian Confederation, and backers of government by the Teutonic Knights.

The Thirteen Years' War ended in the victory of the Prussian Confederation and Poland and in the Second Peace of Thorn (1466). This was soon followed by the War of the Priests (1467–79), a drawn-out dispute with Poland over the independence of the Prussian Prince-Bishopric of Warmia (Ermland).