The theme of this year's parade was "Honoring the Purple Heart".
Marchers included more than 60 members of the armed forces and around 1,000 civilian participants who rode in Army vehicles and antique cars.
Several active duty service members joined them for the annual event outside Marble Collegiate Church.
Each yellow ribbon has the name of a military member who sacrificed his or her life.
Each green ribbon represents prayers for peace.
And there was a special ceremony Sunday night in Brooklyn.
Live music and candles marked a service inside Green-Wood Cemetery.
The service was in honor of all soldiers killed in the Civil War.
This year marked the 150th anniversary of the Civil War and Green-Wood is home to more Civil War dead than any other cemetery in the North.