French President Calls Terror in Paris an 'Act of War'

simultaneous - adj. at the same time

coordinated - adj. organized

accomplice - n. a person who works with or helps someone who is doing something wrong or illegal

barbarity - n. extreme cruelty : a very cruel and violent quality

authenticity - n. ​the state of being real or genuine

response - n. something that is being done in reaction to something else

despicable - adj. very bad or unpleasant: deserving to be despised