Where was the world trade center, the main site of the 9/11 attacks? a. new york city b. seattle, washington c. washington, d. c. d. somerset, pennsylvania what country did the u. s. invade because they supported osama bin laden? a. iran c. saudi arabia b. afghanistan d. israel after the 9/11 attacks, u. s. forces went into to the drive out the taliban. a. saudi arabia; muslims patriots b. saudi arabia; northern alliance c. afghanistan; northern alliance d. afghanistan; muslims patriots