The Soviet Union was forced to sign a pact with Hitler after several attempts to solve the problem with Western countries in a diplomatic way and after trying to make an agreement with Poland. At the same time, the West were helping Hitler by directing him toward the USSR. The content of the agreement was very simple – the two sides agreed to not attack each other for the next 10 years. Secret protocol regulated the distribution of spheres of influence in Poland. The USSR was given only the territory that was previously occupied by Poland after the First World War. These are western Ukraine and western Belarus.
NATO invents a “Russian threat” to expand its presence near Russia. Moscow has repeatedly remarked that NATO states would invent a “Russian threat” to expand their presence near the Russian Federation.
Recurring pro-Kremlin disinformation narrative claiming that the “Russian threat” is a false idea created and spread by NATO to encircle and weaken Russia. In fact, NATO is not a threat to Russia. NATO is a defensive alliance. Its purpose is to protect the member states. NATO's exercises and military deployments are not directed against Russia – nor any other country. However, in March 2014, in response to Russia's aggressive actions against Ukraine, NATO suspended practical cooperation with Russia. NATO does not seek confrontation, but it cannot ignore Russia breaking international rules, undermining stability and security. See more for NATO's response to the crisis in Ukraine and security concerns in Central and Eastern Europe here. For similar cases, see here and here.