By George Friedman Last Wednesday evening, a group of Islamist operatives carried out a complex terror operation in the Indian city of Mumbai. The attack was not complex because of the weapons used or its size, but in the apparent training, multiple methods of approaching the city and excellent operational security and discipline in the final phases of the operation, when the last remaining attackers held out in the Taj Mahal hotel for several days. The operational goal of the attack clearly was to cause as many casualties as possible, particularly among Jews and well-to-do guests of five-star hotels. But attacks on various other targets, from railroad stations to hospitals, indicate that the more general purpose was to spread terror in a major Indian city. While it is not clear precisely who carried out the Mumbai attack, two separate units apparently were involved.