In an interview in Judy Dempsey's Strategic Europe, Dr Ulrich Kühn talks about the history and current state of arms control, which had its peak between 1985 and 1995. At that time, Washington and Moscow had much to gain from conventional and nuclear arms reductions. Although there was no trust between the two states at that time either, there were a number of verifiable and transparent mechanisms for monitoring disarmament. Today, a series of confrontations has taken the place of functioning mechanisms. In addition, there is another party, China. Ulrich Kühn concludes that the atmosphere for successful arms control talks is currently poisoned.
If you want to know more, you can find the interview here.