A Thousand People In The Street: 'For What It's Worth' Captured Youth In Revolt07:03

This story is part of American Anthem, a yearlong series on songs that rouse, unite, celebrate and call to action. Find more at NPR.org/Anthem.

It was February 1967, and 18-year-old Marine Pfc. Bill Ehrhart was days away from leaving for Vietnam. He had just enjoyed his last weekend off base, and his friends had offered to drive him back to Camp Pendleton, Calif., before sunrise.

"It was goodbye civilian world, next stop Vietnam," says Ehrhart, now a writer and poet.

During their nighttime drive down the California coast, his friends turned on the radio — and that's when Ehrhart first heard it:

The radio was playing "For What It's Worth" by Buffalo Springfield, the folk-rock group led by Stephen Stills and Neil Young.

"I vividly remember thinking, 'Wow, what a cool song,' " Ehrhart says. "By the time I left the country, the anti-war movement was still very much a fringe movement, so I literally didn't understand what those guys were singing about."

While it's often recognized as an anti-war protest anthem, "For What It's Worth" wasn't actually based on Vietnam. Stills, who wrote the song, was instead inspired by a confrontation back home that erupted on a few famous blocks in Los Angeles.

LA's Sunset Strip was a world away from Vietnam: a crowded boulevard lined with billboards, dumpy music clubs and a diner packed with teenagers. In the 1960s, the area held the pulse of rock and roll counterculture — and it's where Buffalo Springfield made its name.

"It was like a carnival midway," says music photographer Henry Diltz, who used to hang around the Strip. "Hundreds and hundreds of young kids, all dressed up in bell bottoms and tie-dyes, and they would come in and out of the clubs and walk up and down the street. It was kind of a happening."

But behind the vibrant nightlife, there was simmering tension. Owners of upscale restaurants and fancy storefronts complained that the hordes of teens were bad for business. Meanwhile, Los Angeles County Supervisor Ernest E. Debs wanted to construct a new freeway and turn the Sunset Strip into a financial district, according to the book Riot on Sunset Strip: Rock 'n' Roll's Last Stand in Hollywood.

In an effort to clear out what Debs called the "beatniks" and "wild-eyed kids," LA County began enforcing a 10 p.m. curfew for anyone under 18. In response, the youth scene turned into waves of teenage-led protests against law enforcement.

"These were not friendly neighborhood cops in a blue uniform," Diltz says. "These were patrolmen with helmets and great big jackboots and billy clubs. It was kind of a scary scene in the midst of all that peace and love."

On Nov. 12, 1966, a crowd of young people gathered outside a club called Pandora's Box to protest the "disrespect and abuse of youths by police," as flyers distributed around the area described it. Hundreds of teens jammed the boulevard, some holding signs: "Rights For Youth Too," "Stop Blue Fascism," "Leave Us Alone."

Police shouted back through bullhorns: "Anyone under the age of 18 years old remaining in the area will be arrested." When demonstrators refused to leave at 10 p.m., the Los Angeles County Sheriff's Department and LAPD began their crackdown. The confrontation became known as the Sunset Strip Curfew Riots.

A local KBLA disc jockey who went by the name Humble Harve broke format to take calls from listeners about "the situation on the Sunset Strip." "I've seen it," one caller told him on-air. "I've seen the teenagers beaten — beaten — by the police."

Michael Rummans, a local musician and Sunset Strip regular, says he still remembers how he was confronted the moment he pulled up to the scene: "A cop came up to me, and he said, 'Get out of here right now or I'll drag you out of that car and kick the s*** out of you.' "

"We decided not to leave," says Francie Zbilski, who was inside Pandora's Box with her boyfriend that night. "We were all kind of prepared for the idea that we were going to be arrested." The club was usually a noisy scene with rowdy crowds and live music, but that night, she says, patrons were quiet. She could hear the commotion outside, and then came a loud bang on the door.