Gettysburg was, by American Civil War standards, a massive battle. It's importance should not be downplayed. But it is also just a part of a larger mosaic of the war. There was great interest at the time in its outcome, but I doubt you'd find anyone in 1863 that would have called it a turning-point.
Smoke n Booze Duty Free currently has 3 locations, Port Zante Cruise Ship Terminal, Frigate Bay, and the new inbound duty free store at the Robert L Bradshaw International Airport. Smoke n Booze is the first inbound airport duty free store in the Federation, and caters only to arriving passengers.
Main Terminal / Concourses at Montreal Trudeau YUL Airport. Web check-in: Follow instructions, print out your boarding card at home or at Airport's check-in kiosk, along with luggage tags for checked baggage. Mobile check-in: Use cellphone or web-enabled PDA - check with your airline for user terms.