Now that's stuck........
Wish I had some pictures but I doubt any were ever taken but back in the 70's I helped recover a stuck AVLB from the swamps of Ft Stewart, GA.
For those who don't know, an AVLB is an M60 tank chassis with a bridge on top of it. The bridge weighs 15 tons and I don't remember what the tank weighs.
Anyway, the operator tried to go around a pond throught the woods and only got a few hundred feet before he couldn't go forward anymore. Instead of just backing out, he tried to do a 180 neutral steer and all that did was break the crust and screw the tank into the ground/mud/swamp. Then, he tried to swing from side to side to climb out of the hole he dug. All that did was make it go deeper until he broke the final drive on the right side and locked up the track.
When we got there all I could see was the bridge on top of the tank. Took us two days, one crane and two M88 tank recovery vehicles to get that mess out of the hole and on to high ground.
Then, a couple of weeks later, that same platoon got 3 D7's stuck up to the cab floors on another project. But that's another story......and another fun couple of days with the M88 recovery vehicles.