Fleeing Irpin, Ukraine, March 2022
Mikhail Palinchak / Reuters

Faced with a brutal Russian invasion of Ukraine, many Americans and Europeans are pushing for their governments to provide as much military support as possible to Kyiv. One idea that a number of prominent observers and commentators have seized on is the establishment of a no-fly zone—that is, using force (or the threat of force) to keep Russian aircraft out of some segment of the airspace above Ukraine, in order to prevent Russian air strikes on Ukrainian military forces and civilians in the area. Creating such a zone would involve a combination of day-to-day intelligence collection, observations from the

Finish reading this article for free.

Enter your email and we'll send a paywall-free link directly to your inbox.

In addition to your unlocked article, you will receive our flagship weekly newsletter Foreign Affairs This Week, as well as occasional updates and offers from Foreign Affairs. You can unsubscribe at any time. For more information, visit our user agreement and privacy policy.

Get unlimited access to all Foreign Affairs. Subscribe now.

Are you already a subscriber? Sign in.