What was Nazi Germany's end goal?

Hitler's life goal was to right the wrongs of the hated Versaille Treaty. Historians and history buffs revel in the idea that Hitler's claim for lebensraum was a prefix for world domination. You need only look at a map of Europe in 1917 after the Red Army signed the Treaty of Brest-Litosk to see the extent of what's now greater Germany. Hitler in Mein Kampf refers to the thousands of German soldiers that died securing Germany's lebensraum in the east. Now look at map of Europe in 1919 after the Treaty of Versaille, Greater Germany has disappeared. The answer to the question is the Nazi end game was the return of greater Germany's borders as living room for the German population.

But what was Nazi Germany's end goal?

The military goal in World War II for Germany was the successful completion of Operation Barbarossa (breaking the backbone of Soviet Russia, reaching an easily defensible position like the Arkhangelsk-Astrakhan line). This would remove the Soviet Union as a political and military threat, and win the "Lebensraum" Hitler postulated in "Mein Kampf" as early as 1925.

This in turn would remove the threat of Germany being starved by naval blockade in any upcoming power struggle, and also the threat of another two-front war in the future.

At first, Hitler believed Britain would sit still during this German - Russian power struggle. Because they were a "Germanic" people, because they couldn't want Bolchevism to take over, because they might be happy with their overseas possessions and turn a blind eye on Germany shifting the balance of power on the continent. Then (when Britain and France declared war over the invasion of Poland) he believed Britain could be forced out of the war.

We know how that went, but that's hindsight.

The "end goal", as Hitler quite clearly states in "Mein Kampf", his "political testament", was, and I paraphrase,

"never to endure a second military power at Germany's border, to prohibit its development, or -- if already existing -- destroy it with any means necessary, including force of arms."

Right after that paragraph, he goes on (in his usual, rambling, all-over-the-place style) about how only Italy and England (!) would provide worthwhile alliances, and how an alliance with England would isolate France.

Question: What was Nazi Germany's end goal?

Short Answer:
Hitler had a long history of advocating for multiple wars and stated so in both his books. His best selling Mein Kampf and his uncirculated unreleased "The Zweites Buch". In both he discusses step by step plans for escalating wars ultimately becoming global war and genocide. Hitler's endgame changed with respect to the United States between books, and was altered by reality with regards to the UK. Hitler was consistent that Germany would become a larger player on the world stage through war at the expense of eastern Europe, the Soviet Union, and France. He was also consistent in both book with regards to Genocide against what he called inferior races.

Detailed Answer: Hitler wrote 2 books ("Mein Kampf" and "The Zweites Buch") and in each he discussed the need for Germany to pursue multiple wars. In both books he outlines what later became known as Stufenplan ("stage by stage plan") for conquest and genocide in Eastern Europe, and then the world.

In the First "Mein Kampf", Hitler expresses his "passionate belief" since youth, that Germany must obtain a larger place in the sun with the help of the sword wielded so efficiently by Prussian kings. Hitler responds to people who claim that a second European great war would mean the end of Europe, saying it was only "eternal peace' which destroyed peoples and that "neither the individual nor society could escape Nature's decree that the fittest alone survive".

Three major themes of "Mein Kampf" or My Struggle all deal with the need for War.
(1) To avenge Germany against France for the harsh treatment after WWI through renewed military conflict.
(2) Germany's need for "living space" and the military expansion into the eastern slavic countries.
(3) The need for a bloody crack down on jews and other groups he considers inferior.

Now alternatively Hitler does famously allude to his plans for the UK and the US. He calls the UK a "stabilizing influence on the world" and basically a net positive so no need to destroy them. He alludes to the UK as a natural ally for Germany against France. He calls the US a "country of Mongrels", no threat to Germany and thus, no need to destroy the "American Union".

Hitler Second Book, "The Zweites Buch",

War was definitely on Hitler's mind..

He downplays the costs of wars and paints them as inevitable, desired and necessary, as long as they aren't "eternal".

The Zweites Buch
"Indeed, the losses which arise directly from a war are in no way proportionate to the losses deriving from a Folk's bad and unhealthy life as such. Silent hunger and evil vices in ten years kill more people than war could finish off in a thousand years."

and

"Therefore, wise political leaders of a Folk will never see in war the aim of the life of a Folk, but only a means for the preservation of this life."

In this book he doubles down on the UK as a natural ally and writes them in along with Italy as his allies against France and the Soviet Union. Also in this book he changes his position on the United States. In this book he observes that a million Germans immigrated to the United States. That they were among the best Germans, the risk takers. Those who gave up everything and risked leaving the Fatherland. So he reclassifies the U.S. as an existential threat to Germany's future, which will need to be taken out. As in Mein Kampf, The Soviet Union remains Germany's greatest near term threat, here Hitler claims the US is now Germany's greatest long term threat.

Zweites Buch :The "Fourth Stage"
In contrast to Mein Kampf, in Zweites Buch Hitler added a fourth stage to the Stufenplan. He insinuated that in the far future a struggle for world domination might take place between the United States and a European alliance comprising a new association of nations, consisting of individual states with high national value. Zweites Buch also offers a different perspective on the U.S. than that outlined in Mein Kampf. In the latter, Hitler declared that Germany's most dangerous opponent on the international scene was the Soviet Union; in Zweites Buch, Hitler declared that for immediate purposes, the Soviet Union was still the most dangerous opponent, but that in the long-term, the most dangerous potential opponent was the United States.

Hitler's endgame changed, but was consistent that Germany would become a larger player on the world stage through multiple wars escalating to global conflict. His principle targets for expansion would be, but not limited too, eastern Europe, the Soviet Union, and France.

In "Mein Kampf," Hitler opined: "If we speak of soil in Europe today, we can primarily have in mind only Russia and her vassal border states."

This idea was supported by the Heartland Theory of Britain's HJ Mackinder and Germany's Karl Haushofer.

Basically, if Germany got control of at least eastern Europe (Poland, the Baltic states, Belarus, and the Ukraine), she would dominate the "heartland" (central Europe, eastern Europe, European Russia) of "world island," the Eurasian landmass. The "heartland" itself was key to dominating world island (although an alliance with Japan wouldn't hurt either), and controlling world island could lead to domination of the world.

Hitler wanted to take at least the first step, and possibly all four steps in this sequence.

The concept that large social organisations like an entire modern nation state and its apparatus had singular end goals, and that these were intentionally mapped is refuted in the debates over NSDAP and German racial policy in the "intentionalist / functionalist" debates in the historiography of German racial policy in the East.

In particular works like Christopher Browning's Ordinary Men confound the idea of a central state intention, based on persuasive archival evidence of broad and common functional aims shared amongst ordinary Germans of punishing Jews and Slavs and other minorities in every day life. These aims had no "end," but were rather a process.

As a result of these debates, genocide studies have retreated to a more constrained single incident level of study.

We do know that the functional relationships of the German state in practice tended towards racial annihilation, whether by pogrom and massacre, confinement or execution camp, or death march. What we do not know is the limit of these shared social aims and processes, except as historically limited by the actions of, primarily, the Soviet Union, United States and United Kingdom.

While large documentary archives of NSDAP or Junker-General Staff fantasism exist, these fantasies were demonstrably unrelated to on the ground processes of infighting or murder.

There was no end goal of Nazi Germany but there was a end goal of Hitler for his lifetime. He wanted to conquer Lebensraum from the USSR and settle the area with Germans. He said that it would take 50 to 100 years for Germany to digest these territories, so this would far exceed his own lifetime. The territory after the conquest would resemble the USA settled by the British or Prussia formerly colonized by Teutonic knights. The indigenous peoples would either be totally eradicated, assimilated or locked in reservations like native Americans without the right to leave them, and provide Germans with what the Germans would demand.