Look at the retreat of the 9th and 12th armies from Berlin toward the Oder to surrender to the Americans. The 9th Army was virtually destroyed breaking out of the Halbe pocket, but whatever units survived joined the 12th Army and fought their way to the Oder to surrender to American forces.
Without air cover, terribly short of food, fuel and ammunition and hampered by refugees, they fought their through fresh Red Army divisions to reach the Oder.
I believe they suffered 30,000 casualties but inflicted another 50,000 on the Red Army.
On YouTube you can see German units crossing the remnants of a blown bridge to be disarmed by US units. They came under air attack from the Soviets and German flak units opened up across the river from the US forces, who did nothing to stop them.
Yes. The Bulge. No one thought that possible.
For want of a kerosene can...