In Russia, they announced their withdrawal from DRSMD in 2018 year

At the disposal of the resource Avia.pro was an article called “Military-economic security of the Russian Federation: prospects for the prolongation of the START-3 agreement”published by the Military University of the Ministry of Defense of the Russian Federation in the collection of theses for 2018 year, which reported the withdrawal of Russia from the Treaty on the Elimination of Intermediate-Range and Short-Range Missiles. Remarkable is the fact that a year later, Russia really suspended its participation in the INF Treaty, in preparation for finally withdrawing from this agreement.

Exit the Treaty on the Elimination of Intermediate-Range and Shorter-Range Missiles (INF Treaty) from 1987 on the basis that:

• the global missile defense system located at the borders of the Russian Federation assumes that the launchers of these systems are equipped with medium-range missiles capable of delivering a decapitating 1;
• there are medium-range missiles, in addition to the United States and NATO, with the neighbors of the Russian Federation: China, India, Pakistan, Iran, North Korea, Israel.

Experts note that the article mentions that a number of countries have medium-range missiles banned by the INF Treaty, which may mean that Russia has long possessed information that the United States and NATO had forbidden missiles, but the base event was the groundless accusations of the address of Russia that it was she who broke the agreement.