Zelensky is the first one to officially bring up demilitarization of the Black Sea

"The new proposal announced by Zelenskiy comes two days after French President Emmanuel Macron revealed that he was negotiating with British Prime Minister Keir Starmer to offer a partial ceasefire similar to the one detailed by the Ukrainian leader, although only for one month. French Foreign Minister Jean-Noel Barrot added that the intention of “a truce in the sky, at sea and in the energy infrastructure is to test whether Vladimir Putin has good intentions to seal a truce.”"

https://english.elpais.com/international/2025-03-04/zelenskiy-offers-putin-partial-truce-for-first-time-to-stop-air-and-sea-attacks.html
@blacksea