As Ukrainians resist Russia’s invasion of their nation, their government said Saturday it is planning to remove road signs in hopes of confusing Russian troops — and encouraging citizens to help.

In a world of wild talk and fake news, help us stand up for the facts.

Learning road signs can seem like a one-time job. People cram for a test, then drive for years on habit. Yet signs change, routes change, and memory fades. Some symbols also ask drivers to supply ...