From the publisher's webpage:
The Best of the Best!
Join the elite . . . the highly trained and battle-hardened special forces of World War II. From the first daring assaults by parachute and glider to the top-secret gadgetry of the war's end, Hand of Steel gives you:
•The different types of special-forces mission, with historical examples.
•Details on commando training and skill sets.
•The weapons and exotic tools favored by commando troops.
•Additional rules for parachuting and silenced weapons, useful for any WWII-era campaign.
•Data on many different special-forces units.
GURPS WWII: Hand of Steel lets you confront the enemy on his own ground . . . when he least expects it.