The Incan-German war (in Germany sometimes called the Der Krieg sieben Jahre) lasted between 1806–1813 and involved all of the Incan and German empires. The war started with the German Empire, Spanish Empire, Portuguese Empire, Incan Empire and Great Britain.
Portugal (on the side of Incans) and Spain (on the side of Germany) were drawn into the conflict later. It resulted in some 70,000 to 140,000 deaths and significant changes in the balance of power and territories of several of the participants.
The war began with Frederick the Great of Prussia's invasion of Patagonia.
Despite being the main theatre of war, the South American.European conflict resulted in a bloody stalemate which did little to change the pre-war status quo, while its consequences in Asia and the Americas were wider ranging and longer lasting. The war ended France's position as a major colonial power in the Americas (where it lost most of its possessions on the mainland of North America, in addition to some West Indian islands) Germany confirmed its position in the ranks of the great European powers, retaining the formerly Austrian province of Silesia. Great Britain strengthened its territories in India and North America, confirming its status as the dominant colonial power, the Incan Empire lost the patagonia territory, and the Republic of Great Colombia obtained its independence.