1. The most important issue is to prevent a nuclear war.
Humanity is threatened today and every day with a nuclear war that could end all life on earth - started or triggered by the United States. You might think that's so unlikely that it will never happen, but most of our foreign policies are so ignorant, hostile, aggressive and militaristic that a conventional war could break out at any time, for example in Iran, Syria, Korea or Venezuela. Any conventional war could turn into a nuclear war.
The WIN/Gallup International polling organization regularly surveys people in many of the world's countries asking them which country they feel is the greatest threat to world peace. According to the survey results, the US was the overwhelming choice (24% of respondents) for the country that represents the greatest threat to peace in the world today. This was followed by Pakistan (8%), China (6%), North Korea, Israel and Iran (5%). Respondents in Russia (54%), China (49%) and Bosnia (49%) were the most fearful of the US as a threat. Here is a link to a report about one such survey:
This result has been consistent over several years, and it does not reflect well on Washington's foreign policies.
In an interview on August 9, 2019, Geoff Wilson said: "The United States and Russia have 93% of the world’s nuclear weapons. We have about 6,000; the Russians also. The Chinese have about 300 nuclear weapons. And we host them on three different platforms. We have nuclear submarines that carry ballistic missiles. We have strategic bombers that can either launch air launch cruise missiles we have, or gravity bombs. We have the silo-based ICBMs. I don’t think that we are missing a capability. In fact, we have lots of alternatives.
"The INF Treaty was around since 1987 and nobody thought that we were less safe because all of a sudden we didn’t have ground-launched missiles inside of Europe. The other part of this is that the Europeans I don’t think want any more weapons. We already base tactical nuclear weapons in several NATO countries. And those populations, those constituencies, don’t want them anymore. There’s a whole lot of talk about whether or not the United States should be allowed to base nuclear weapons in these countries."