Security guarantees are one of the main issues in the negotiations to resolve the situation in Ukraine, according to the US Secretary of State.
Rubio expressed hope that progress could be made in the negotiations in Abu Dhabi.
For me, on the other hand, I have little hope that anything significant will be achieved.
IMO, this is just a preliminary meeting to discuss offers.
If there is a tripartite meeting between Trump-Putin and Xi at the APEC summit later, we might get the outline of something tangible.