Will The Trump / Putin Summit End The War In Ukraine?

Suddenly, President Trump and Russia's President Putin are on course to have a face-to-face meeting, possibly as soon as next week. What changed? Was it the threat of secondary tariffs against countries like India and China for buying Russian oil? Was it the three hour meeting between Putin and Trump's envoy Steve Witkoff, which apparently saw great progress, but no major breakthroughs? Whatever it was, the meeting is supposed to be on, and it's worth considering whether it represents any kind of move forward, even a potential step change - or just another chapter in more-of-the-same? Let's discuss.