Without sending troops, the U.S. wages 'hybrid warfare' against Russia

The U.S. and Russian militaries have both talked for years about "hybrid warfare" as the future of war. Yet it remains a fuzzy term with no fixed meaning. The general idea is waging unconventional war on multiple fronts and well beyond the traditional battlefield.

What's clear is the U.S. and its allies are doing this now — perhaps on a scale never seen before — as they attempt to counter Russia in the war in Ukraine.

Here's a look at what it means in the current conflict:

Q. How did "hybrid warfare" enter the military