Tag Archives: The Heavy Water War

‘The Winter Fortress,’ by Neal Bascomb

The Winter Fortress

I think I first heard of the World War II Norwegian Resistance sabotage at Vemork and Rjukan when the Kirk Douglas movie, The Heroes of Telemark, came out in 1965. I didn’t see the movie then, but I read reviews and articles in the paper. I finally saw the movie in college. I think I realized even then that it probably bore as much resemblance to real events as a Lego figure bears to a real person.

Later I read accounts in books, and saw a TV documentary (which stated, somewhat snarkily, at the end that recently discovered documents proved that it was all unnecessary, as the Germans never intended to build an atom bomb at all. This was a premature and exaggerated claim). Then there was the Norwegian/British miniseries, “The Heavy Water War,” which was more authentic than the movie, but also highly fictionalized.

I think I’ve got the genuine story, within reasonable tolerances, now that I’ve read Neal Bascomb’s The Winter Fortress.

The Norsk Hydro hydroelectric plant at Vemork, Telemark had a small, profitable, almost exclusive sideline manufacturing deuterium – “heavy water” – an ingredient in fertilizers. That operation became the focus of international intrigue when German scientists chose deuterium as a moderating agent in their atomic experiments – which did indeed have the goal of producing a super-bomb, though of course not every Nazi in the government supported the project. When the Norwegian Resistance, after the Occupation, discovered the Germans’ intentions for the stuff, they alerted British Intelligence, and halting heavy water production became a prime war objective.

The story of how a small group of Norwegian commandos, supplemented by an ill-starred company of British Army saboteurs, endured police searches, betrayals, horrific winter weather, separation from their families, and plain bad luck to carry out two highly successful sabotage operations forms the story of The Winter Fortress. The characters (particularly commander Leif Trondstad, Joaquin Rønneberg, and Knut Haukelid) come to life, and the times and circumstances are vividly painted. A lot of painstaking research went into this book, and it was not wasted. The story is exciting, and poignant, and often tragic.

Highly recommended. Not for the faint of heart.

Netflix review: ‘The Heavy Water War’


Photo credit: Robert Holand Dreier

In 1965 a film was made in Britain about the WWII Norwegian Resistance sabotage of the German heavy water project at Rjukan, Norway. It was called Heroes of Telemark, it starred Kirk Douglas, and it was essentially an upbeat and rather frivolous production. Norwegians complained that, in the movie, Kirk personally achieved in about two weeks what it took a whole unit of real saboteurs two years to do.

The 2015 Norwegian/Danish/English production, The Heavy Water War, available for streaming on Netflix, hews closer to the facts. It is artistically superior and far darker.

We follow the main character, Leif Tronstad (Espen Klouman Høiner; in this production, unlike the Douglas movie, the characters go under their real names, except for several fictionalized characters), a Norwegian scientist who escapes to England and joins the British-trained saboteur company there. Leif becomes their leader and gets emotionally involved with British intelligence officer Julie Smith (Anna Freil; a fictional character), but not so far as to actually commit adultery (they’re both married). We follow Leif and his company through the disastrous initial glider operation meant to destroy the Rjukan plant. Then follows the famous raid, where they succeed in blowing up the equipment, housed in the cellar of the factory. And after that, the hard decision to blow up the passenger ferry carrying the remaining heavy water out of the country, at the cost of civilian lives.

But there are actually three main threads in the narrative. We follow the manager of the heavy water plant (another fictionalized character) as he self-justifies his collaboration, and his troubled wife, who diverts her fears by mothering the daughter of her house maid. We also follow scientist Werner Heisenberg in Germany, singlemindedly focused on the scientific aspects of the atomic bomb project, refusing to think in moral categories. Each of these characters is treated as a full, complex human being. The viewer is left to make judgments.

My complaints are few. I wish the actors had looked more like the people they portray. The producers made the decision to suggest strongly that the explosion of the ferry was probably unnecessary (this, I believe, is a matter of dispute among historians).

The Heavy Water War is challenging, and sometimes tragic, but definitely worth watching. Recommended, for grownups.