Remove all but 2 tablespoons of fat from the dutch oven.
Add the onion, carrot, celery and garlic and sauté for about 5 minutes, or until the onion becomes translucent.
Add the tomatoes, bay leaf, thyme, drained chickpeas, wine, and pork and add enough water to cover by about an inch.
Bring the soup to a boil over medium-high heat, then cover and place in the oven.
The chickpeas and meat will become tender at about the same time, which could be after 3 hours or more. Check the soup occasionally to make sure the mixture doesn't dry out. (Mine didn't, but if yours does, add water as necessary.)