[1][6] The maneuver plan called for the integration of infantry, armor, artillery, air forces, engineers, and support units in five specific training problems conducted in nine phases.

Supply depots were established at key locations and a Signal Corps battalion set up a communication network in the maneuver area.

As the maneuver got underway, Army logistics troops began working around the clock to move combat supplies, food, water, gasoline, and equipment from a special railhead near Bend to the front lines.

[1][3][8][16] In mid-September, the Red Force deployed to positions 40 miles (64 km) east of Bend, establishing a north-south defensive line near Brothers, Oregon.

After several days of stubborn resistance, the Red Force withdrew to the east toward Burns, fighting a delaying action as it pulled back.

The final battle lasted three days, with the Red Force occupying strong positions on high ground blocking U.S. Route 395.

The larger Blue Force used tanks to spearhead their final assault, knocking out one Red outpost after another until the defenders could no longer maintain their line.

[1][19][20][21] The final phase of the maneuver was observed by Lieutenant General Lesley McNair, chief of United States Army Ground Forces.

During an interview at a dirt airfield near Alkali Lake, south of the Wagontire battle area, General McNair pronounced the maneuver a success.

[20][22] On 13 October 1943, General Patch officially ended the maneuver, declaring that the Red and Blue forces had both accomplished their training missions.

[25] The United States War Department report on the Oregon Maneuver said the high desert environment proved to be ideal for the prescribed training.

It noted that "the generally clear, cold weather facilitated long foot marches and permitted almost continuous operations of aircraft."

This was particularly challenging during a river-crossing operation that left participating personnel thoroughly wet; nevertheless, at the end of the maneuver the health of the entire command was found to be excellent.

The bill notes that the Oregon Maneuver was the largest military training exercise ever held in the Pacific Northwest, involving over 100,000 American soldiers and airmen.