In 1987 the United States and Soviet Union signed the Intermediate-Range Nuclear Forces (INF) Treaty.
Russia has shown no sign that it is willing to acknowledge its violation, let alone return to full and verifiable compliance.
I’ll start by sharing the history of the Russian violation.
While the INF Treaty bans all ground based missile systems within the prohibited range, it allows you to test missiles from a fixed launcher as long as you do not intend to base them on the ground. For example, basing missiles on ship or aircraft.
Since 2013, the United States has repeatedly approached the Russian government in an effort to resolve the issue of Russian noncompliance.
So now we are where we are. Russia has violated the INF and the US is committed to effective security and arm control regimes. We must reconcile these realities with the security context of today’s environment.