The Treaty of Non-Aggression Between the Soviet Union and Germany was signed on August 23, 1939.

苏德互不侵犯条约订立于一九三九年八月二十三日。

youdao

In it he expressly condemns the Molotov-Ribbentrop Pact, the treaty of non-aggression between the Soviet Union and Nazi Germany.

VOA: standard.2009.09.01

And the announcement a month later of a non-aggression treaty between Germany and the Soviet Union gave Tokyo even more cause for concern.

VOA: special.2011.05.26

Is that a softening of its demand for a non-aggression treaty up front (a non-starter for America's Congress)?

ECONOMIST: Giving diplomacy a chance