Black-bean and corned-beef soup

2 tablespoons cooking oil
1 onion, chopped
2 Carrots, diced
2 ribs Celery, diced
1 red bell Pepper, diced
1 1/2 teaspoons Salt
3 cups water
3 cups canned low-sodium chicken broth or homemade stock
2 cups drained and rinsed canned Black beans (one 19-ounce can)
1 jalapeno pepper, seeds and ribs removed, minced
1/2 pound sliced deli corned beef, cut crosswise into thin strips
1 1/2 tablespoons red wine Vinegar or white wine vinegar
1/4 cup chopped fresh parsley

1.In a large pot, heat the oil over moderate heat. Add the onion, Carrots, Celery, bell Pepper, and 1/2 teaspoon of the Salt and cook, stirring occasionally, until the vegetables start to soften, about 10 minutes.
2.Add the water, broth, and the remaining teaspoon of salt to the pot. Bring to a boil. Reduce the heat and simmer until the vegetables are tender, about 10 minutes. Stir the beans and jalapeno into the soup and simmer for 5 minutes more.
3.Remove the pot from the heat and stir in the corned beef, Vinegar, and parsley.