A second day of negotiations to end Russia’s war against Ukraine wrapped up in Abu Dhabi today. Once again, all sides praised the talks as constructive, but had little to show for them except a limited prisoner exchange—the first in five months. While the development is doubtless the most important moment of the war for those people’s families, it is not exactly the kind of diplomatic breakthrough that Trump has been looking for. In fact, Russia, characteristically, asked for even more during this round than it had before. Now, instead of demanding de facto recognition of its control over the Donbas region, it wants international de jure recognition, including by the United States.