Millions of New York City residents took to the streets of New York Sunday -- joined by an unprecedented security force.
During the annual New York City marathon -- the city was determined to not let last week's terror attack hold them back.
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More than 50-thousand runners and two and a half million spectators were in attendance -- less than one week after the deadliest terror attack to hit the city since 9/11.
Marathon security has already increased in the wake of the Boston Marathon bombings but authorities say this year's record security is unprecedented.
Peter Ciaccia, a member of the New York Road Runners said,"New Yorkers are resilient and I think they love to make statements and this is a way to make a statement to come together and show the world that you know we don't hide."
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Officials brought out extra blocker vehicles and concrete barricades at vulnerable intersections.
Surveillance teams and K9 units teamed up with thousands of officers also lined the streets.