“This crusade, this war on terrorism is going to take a while,” former President George W. Bush said on the White House South Lawn on Sept. 16, 2001. “And the American people must be patient. I’m going to be patient.”

Bush was right that a war on an abstract noun like “terror” would take awhile.

It began in October 2001 with the US’ invasion of Afghanistan. And although former President Barack Obama officially ended “The Global War on Terror” in 2013, the fight against terrorism continues nearly 17 years later.