Trusted partner for over a century.

International Harvester M-41 vehicle being tested during World War II.

The quality and dependability of our trucks and engines, and our unwavering dedication to service and support, have established Navistar Defense as a true partner to the United States military and Allies around the world.

Building on a history of excellence.

Established more than 100 years ago as the International Harvester Company, we’ve used our commercial truck building expertise to become a leader in the design, manufacture and support of a full range of advanced military vehicles. We continue to evolve with a new commitment to research and development, innovative product engineering and unmatched support services.

Answering the call since WWI.

While International Harvester started in farm equipment, the company was quickly pressed into service to produce military vehicles for World War I. We gained even more valuable military experience when we switched over our entire commercial operations during World War II to produce M-series trucks for the Marine Corps and Navy. Our vehicles earned a reputation for toughness and durability under extreme battlefield conditions. A reputation that lives on today in our International® brand military vehicles.





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The MaxxPro® Wrecker

The MaxxPro® MRAP Wrecker was the Army’s fastest procured joint urgent operational need (JUON) since WWII.

With the first vehicle rolling off the production line just 19 days after the contract award, the Wrecker helped save the lives of two soldiers who took an IED explosion in the field only two weeks after delivery.

Quick Facts

Sustainment: Harvester Battalions.

During WWII, International Harvester trained stilled mechanics who were assigned to the front lines in armored divisions. More than 12,000 people trained to maintained IH's military products including tanks and trucks.


Success Story:

Breaking delivery records to save lives.

When you're making armored vehicles to protect the troops, there's a special kind of urgency. That's why Navistar Defense is so proud of our manufacturing quality and efficiency. No story illustrates that better than the production of our MaxxPro® MRAP Recovery Vehicle.




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