In Ukraine, freedom is not some abstract concept studied by philosophers and poets.

Thousands of Ukrainians have fought and died to preserve their country's hard-earned freedoms, says historian and author Timothy Snyder. "There's this Ukrainian word “de-occupation,” which they tend to say instead of liberation. And that really gets you thinking about freedom as positive because, sure, you can de-occupy, and it's important that the torture stops, and the deportations stop, and the kidnapping of children stops. But the word de-occupation reminds you that that is still just the beginning. You have to clear the rubble and rebuild the playgrounds, and the buses and the trains have to start running again."