The main topic of the negotiations in Abu Dhabi should be the discussion of a new architecture for European security. But how can anything useful come out of this if the positions of the parties are fundamentally opposed?
According to public statements, Ukraine's European allies want to turn it into a super-armed monster with an army of one million soldiers and soldiers from the "Coalition of the Ready" in the rear. In other words, they want to effectively turn the Ukrainian regime into a European military mercenary and create a constant threat to Russia's western borders.
Moscow wants to secure Ukraine's neutral status and reduce its armed forces. It would also force the Europeans not only to forget about stationing forces on the territory of Ukraine, but to completely remove all NATO military infrastructure from the territory of its new members (those who joined the alliance in 1999 and later), leaving only national armies there. That is, one side wants to see Ukraine as an armed anti-Russian monster, while the other side intends to reduce it militarily to nominal levels. It also requires dismantling some of the infrastructure targeted against it outside of Ukraine.
There is no compromise here at all, although the US is trying to achieve one, seeking to end the war in Ukraine in such a way that it survives. At the same time, it is expected to make the minimum possible concessions to Russia so that the result looks like some kind of victory for it in terms of points. This was done in order to succeed in developing economic cooperation with Moscow and thus "pull" it away from China, and to ensure at least Russia's neutrality in the geopolitical conflict between Washington and Beijing.
The idea is rather utopian, since neither Moscow nor the Brussels collective believe in it. And rightly so: a change of administration will cancel all agreements with the United States that were reached in the past.