Because Russia is trying to avoid nuclear war with pedos.

Graham said some exchange of land would help make them look less like the losers they are:

https://www.nbcnews.com/politics/trump-administration/lindsey-graham-says-russia-ukraine-need-swap-land-ceasefire-deal-rcna224140

Putin wouldn't normally meet a guy like Trump unless it is to discuss aid for his turd world country after a hurricane or something.

But Trump has nukes, small brain and short fuse. This is what he requested. Putin agreed for the sake of peace. Trump will undoubtedly make a fool of himself and America again by rejecting the gift he asked for.