NATO's Dilemma - No Fly Zone over Ukraine

A dilemma – for NATO : Response to Ukraine's outcry asking NATO to declare No Fly Zone over Ukraine's space. Will it be a trigger for next World War if promise to a prospective member is fulfilled? While the West / US is fighting well on economic front in weakening Russia, the support to strengthen Ukraine is considered grossly inadequate by Ukraine. The kind of help Ukraine is looking for from the West / US is more direct involvement in the war. Failing to seek their support as expected, Ukraine's asking NATO to declare No Fly Zone over its air space is next strategic move Ukraine has made to drag the west directly into war. For NATO, not acceding to it amounts to going back on promise made and accepting the same would make them be directly responsible to hit any Russian plane violating Ukrainian Air Space. Shall they take a chance believing Russia will behave a good girl and not extend the war beyond Ukrainian territory, a probable trigger point to WW-3 or they let...