When the truce expired in June 1410, allied Poland-Lithuania invaded Prussia and met the Teutonic Knights in the Battle of Grunwald.

He eventually learned her true identity in 1806, when Napoleon Bonaparte was invading Prussia and Gauss's birthplace, Braunschweig (city).

Poland announced its support for the Lithuanian cause and threatened to invade Prussia in return.

The war was a stalemate as the Prussians were not able to advance far into Bohemia or Austria, but the Austrians were unwilling to invade Saxony or Prussia.

While in Vienna, Trenck's Pandurs marched the streets before invading Prussia.

The troupe set up a base in Kassel from 1810 to 1812 but left this city when France invaded Prussia on the eve of the invasion of Russia.

Armies of King Jogaila and Grand Duke Vytautas invaded Prussia ruled by the monastic state in summer of 1414.

September - France invades Prussia.

The next year Apraksin took up the overall command of the army invading Prussia and won the Battle of Gross-Jägersdorf on 30 August 1757.

Allied Polish and Lithuanian forces invaded Prussia in July 1410 with a goal of capturing Marienburg.