You probably know that planes can't fly close to the White House—but did you know that Disney World is also a no-fly zone?

The United States and NATO have, so far, rejected President Zelenskyy's pleas for a no-fly zone. Here is a look at what a no-fly zone is, and why there isn't one over Ukraine.

A no-fly zone would put U.S. and other NATO pilots in a position of shooting down Russian planes. Experts warn such action risks escalating the conflict dramatically—into cataclysmic nuclear war ...

Ukrainian President Volodymyr Zelenskyy asked a no-fly zone be put in place over Ukraine. A no-fly zone would prohibit Russian aircrafts from entering Ukraine by means of combat. NATO is reluctant ...

The U.S. and its NATO allies have repeatedly said a no-fly zone over Ukraine could bring about a direct conflict with Russia. "It’s a combat mission," one expert said.

After a poll showed 74 percent supported a no-fly zone, a pollster tried to get at what support would be if people actually understood the idea. And support dropped -- kind of.

One thing that a no-fly zone would do would perhaps add to this perception by Putin that his own survival as the leader of Russia and thus as a living person would be threatened.

No-fly zones come about not through declarations but force. Instituting one means shooting down Russian aircraft. Shooting down Russian aircraft means war, on some level, with Russia.

Our Sources. Axios, "Zelensky: If West won't impose no-fly zone, ‘give me the planes,’" Mar 3, 2022 Washington Post, "Calls grow for a no-fly zone over Ukraine.Here’s what it would mean ...

No-fly zones, which date back to the 1991 Persian Gulf War, are a physical area in which aircraft are prevented from flying by the air power of another, stronger sovereign state or coalition, ...

An airplane belonging to forces loyal to Syrian President Bashar al-Assad flies above Idlib in May 2014. The creation of a no-fly zone is a key step toward creating a safe zone below, though not ...

Comments by the chief of the North Atlantic Treaty Organization that alliance members won’t impose a no-fly zone over Ukraine underscore the risks and logistical challenges of taking such a move.