The Obersalzberg Speech is a speech which Adolf Hitler delivered in the presence of Wehrmacht commanders at his Obersalzberg home on 22 August 1939, a week before the German invasion of Poland.
 In August 1939, Louis P. Lochner contacted the American diplomat Alexander Comstock Kirk and showed him the text, but Kirk was not interested. Lochner next contacted the British diplomat George Ogilvie-Forbes, who indeed transmitted it back to London on 25 August 1939. The Canadian historian Michael Marrus wrote that Lochner almost certainly obtained the text from Admiral Wilhelm Canaris, the chief of the Abwehr (German intelligence), who was present at the Obersalzberg Conference.
 Three documents were grouped together during the Nuremberg Trials that contained Hitler's speech on 22 August 1939 (1014-PS, 798-PS, and L-3,) and only the document L-3 contained a reference to the Armenian genocide. Documents 1014-PS and 798-PS were captured by the United States forces inside the OKW headquarters but the documents did not contain the Armenian quote. On May 16, 1946, during the Nuremberg War Tribunals, a counsel for one of the defendants, Dr. Walter Siemers requested from the president of the trial to strike out document 1014-PS, but his request was rejected by the president. Document L-3 was brought to the court by an American journalist, Louis P. Lochner.
 According to Louis P. Lochner, while he was stationed in Berlin, he received a copy of a speech by Hitler from his informant. Lochner later published the speech (in English translation) in his book What About Germany? (New York: Dodd, Mead & Co., 1942) as being indicative of Hitler's desire to conquer the world. In 1945, Lochner handed over a transcript of the German document he had received to the prosecution at the Nuremberg trials, and it was labeled L-3. Hence it is known as the L-3 document. The speech is also found in a footnote to notes about a speech that Hitler held in Obersalzberg on 22 August 1939 and was published in the German Foreign Policy documents When asked in the Nuremberg War Crimes Tribunal who his source was, Lochner said this was a German called "Herr Maasz" but gave vague information about him.
 The Times of London quoted from Lochner's version in an unsigned article titled The War Route of the Nazi Germany on 24 November 1945. The article stated that it had been brought forward by the prosecutor on 23 November 1945, as evidence. However, according to the Akten zur deutschen auswärtigen Politik (ser. D, vol. 7, 1961), the document was not introduced as evidence before the International Military Tribunal for undisclosed reasons and is not included in the official publication of the documents in evidence. Two other documents containing minutes of Hitler's Obersalzberg speech(es) had been found among the seized German documents and were introduced as evidence, both omitting the Armenian quote.
 In Nazi Conspiracy and Aggression (colloquially known as "the Red Set"), a collection of documents related to the Nuremberg trials which was compiled by the prosecutorial team, the editors describe the relationship between the relevant documents as follows:
 Just one week prior to the launching of the attack on Poland, Hitler made an address to his chief military commanders, at Obersalzberg, on 22 August 1939. [Three reports of this meeting are available: (L-3; 798-PS and 1014-PS). The first of the three documents (L-3) was obtained through an American newspaperman, and purported to be original minutes of the Obersalzberg meeting, transmitted to the newspaperman by some other person. There was no proof of actual delivery to the intermediary by the person who took the notes. That document (L-3) therefore, merely served as an incentive to search for something better. The result was that two other documents (798-PS) and (1014-PS) were discovered in the OKW files at Flensberg [sic]. These two documents indicate that Hitler on that day made two speeches, one apparently in the morning and one in the afternoon. Comparison of those two documents with the first document (L-3) led to the conclusion that the first document was a slightly garbled merger of the two speeches, and therefore was not relied upon.] In his book What about Germany?, Lochner offered the following English translation of the third paragraph of the document L-3:
 Our strength consists in our speed and in our brutality. Genghis Khan led millions of women and children to slaughter – with premeditation and a happy heart. History sees in him solely the founder of a state. It's a matter of indifference to me what a weak western European civilization will say about me. I have issued the command – and I'll have anybody who utters but one word of criticism executed by a firing squad – that our war aim does not consist in reaching certain lines, but in the physical destruction of the enemy. Accordingly, I have placed my death-head formation in readiness – for the present only in the East – with orders to them to send to death mercilessly and without compassion, men, women, and children of Polish derivation and language. Only thus shall we gain the living space (Lebensraum) which we need. Who, after all, speaks today of the annihilation of the Armenians?