From 1964 to 1973, the United States utilized its Air Force to conduct a little-known, clandestine war on a small, landlocked country in Southeast Asia — Laos.

“We bombed incessantly, ” says Jim Harris, “We Help War Victims” founder, in the following video. “And we bombed in secret.”

The strategic reason? To stop the North Vietnamese soldiers from passing into South Vietnam on the famed Hồ Chí Minh Trail — a “logistical system” that happened to run through both Laos and Cambodia.

Today, still, Laos is the most heavily bombed country on Earth.

Watch this short, six-minute clip and see what this inconceivable (but true) fact looks like, with your own eyes.

There’s nary square foot in the entire nation that hasn’t been blown up by an American ammunition. It looks like a toddler trying to color in a shape on MS Paint.

It’s staggering.

The data comes from the website of the National Regulatory Authority of Lao PDR (NRA) which, according to the makers of the film, oversees UXO (unexploded ordnance) clearance in the country.