Most of those who perished were civilians except for 343 firefighters and 71 law enforcement officers who died in the World Trade Center and on the ground in New York City,[6] and another law enforcement officer who died when United Airlines Flight 93 crashed into a field near Shanksville, Pennsylvania,[7] 55 military personnel who died at the Pentagon in Arlington County, Virginia,[8] and the 19 terrorists who died on board the four aircraft. Overall, 2,605 U.S. citizens, including 2,135 civilians, died in the attacks, while an additional 372 non-U.S. citizens (excluding the 19 perpetrators) also perished, which represented about 12% of the total.[4] More than 90 countries lost citizens in the attacks,[9] including the United Kingdom (67 deaths), the Dominican Republic (47 deaths), and India (41 deaths).