The so-called "March On The Pentagon" drew nearly 100,000 protestors of The War in Viet Nam. The group first assembled peacefully in front of the Lincoln Monument before making their way to the Pentagon.
Spokesperson Dr. Benjamin Spock publicly referred to President Lydnon Johnson as “the enemy” and Allen Ginsberg enticed the crowd to collectively chant to see if they could levitate The Pentagon. (Gee, I wonder why none of these types of protests were ever successful or taken seriously???) I'm sure it all made sense at the time … depending on whatever you had ingested that day.
There were incidents along the way that caused military personnel to hold the protestors at bay once they reached their ultimate destination, but by the time the rally finally broke up (the early morning hours of October 23rd), a total of only 683 people (including novelist Norman Mailer) had been arrested … not bad for a crowd of this size.