Can't say I'm a fan of Zelensky criticising NATO for refusing to enforce a no-fly zone. Either Zelensky is extremely naive, or he actively wants to escalate this conflict into a global one. A no-fly zone isn't definitely WWIII, but it's essentially delivering Putin an ultimatum which, if he ignores, does mean WWIII. Does Zelensky really think Putin will instantly back down if NATO flex their muscles? It would be a huge and dangerous gamble.