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Plaque William & Wallace
American soldiers of the 3rd Armored Division with their Sherman M4 Plenty Tough II during World War II
About

François Janssen

Founder of Hogan's 400, Belgian reenactor and director of the upcoming documentary They Were 400.

Passionate about World War II since childhood — a fascination passed down by my father.

My grandfather, Victor Janssen, served in the Belgian Secret Army during the war. That family thread is where it all started.

I learned to drive on a Willys Jeep. Then came reenactment, and commemorative parachute jumps. Fifteen years in this world — and never had I come across a story as gripping as this one.

The journey

From a reenactment to a documentary

2021

The first reenactment

I discovered the Hogan's 400 story while researching a reenactment topic with my club at the time. Together, we organized the first reenactment dedicated to the Task Force Hogan in Marcouray. The Lt. Colonel's family came from the United States to attend.

2022

On Hogan's grave

Summer 2022. I travel to Washington to visit the grave of Lt. Colonel Samuel Mason Hogan. I thought it would be the icing on the cake of the project. In reality, it was where everything started.

2023

Before The Breakout

Second commemoration in Marcouray, this time with the start of filming for the documentary. 110 enthusiasts gathered at Marcouray, William Hogan present for the book signing of Task Force Hogan.

2024

NUTS at Marcouray — 80th anniversary

Eighty years to the day after the encirclement, the Hogan and Guidry families are back in Marcouray. Night march, immersive reenactment, an emotional moment for everyone who had been part of this journey for years.

2026

hogans400.com — the platform

Launch of this site to gather everything: 22 biographies, the day-by-day account, sources, and the documentary in production. A research that's alive, updated as new sources surface.

The mission

A promise made on a grave

"They Were 400 was, in a way, a promise made to the Lt. Colonel that day."

To bring this story into the light. To pull it out of obscurity. That is the mission of this site, and that is what drives the documentary.

The encirclement of Marcouray lasted just a few days compared to these men's whole war in Europe. But this episode deserves to be told — too long absorbed by the shadow of the siege of Bastogne.

Current projects

What I'm working on

Documentary

They Were 400

A film built around direct testimonies, archive material, and immersion through reenacted scenes. The goal: to tell the story of these men day by day, from December 19 to 26, 1944.

See the project
Future

Battlefield Tour

Walking the exact route of the Task Force Hogan — from Hotton to La Roche-en-Ardenne, through Marcouray. Launch planned for summer 2026.

Learn more
Memorial

Plaque William & Wallace

A permanent monument in Marcouray for William Wales and Wallace Siarkowski, both of whom died for this village. A memorial project currently in development.

See the project
A precious collaboration

With William Robert Hogan

From the very beginning, this project would not exist without the constant collaboration of William Robert Hogan, son of the Lt. Colonel and author of the book Task Force Hogan.

He has taught me so much about this story and his father's story. Today, we are friends.

A question, a memory, a testimony?

If you have material to share, a question to ask, or simply want to talk about the project — I'd be glad to hear from you.

Get in touch