In a 6-quart (or larger) Dutch oven
over medium heat, cook the bacon, stirring occasionally, until partially crisp, about 7 minutes. With a slotted spoon, transfer the bacon to a paper-towel-lined plate. Add the onions to the pot and cook, scraping up any browned bits and stirring occasionally, until softened, 6 to 8 minutes. Add the garlic and rosemary and cook, stirring constantly, until fragrant, about 1 minute. Add the chicken
broth, chickpeas, tomatoes and their juices, carrots, celery, cinnamon stick, 3/4 teaspoon salt, 1/2 teaspoon pepper, and 1 cup
water. Bring to a boil over high heat; skim any foam as necessary. Reduce the heat and simmer, stirring occasionally, until the carrots and celery are very tender, about 30 minutes.