what war was Lothar Heim in from This Is What Cigarettes Replaced! youtube video

Lothar Heim appears to be associated with World War II in the video description for This Is What Cigarettes Replaced!.

What the video says

The search result for the video identifies Lothar Heim as running the last traditional clay pipe workshop in Hilgert, and the related context around cigarettes and wartime history points to World War II. The available result does not give a more specific war beyond that.

So the answer

• Most likely war: World War II.

• Confidence: Moderate, because the result ties the topic to wartime cigarette history but does not explicitly name Heim’s own war service.

TL;DR: The video points to World War II as the relevant war.