Crowds cheered and waved as bikers throttled their engines and waved back. Many bikers rode with U.S. or Prisoner of War flags. A few rode with Confederate flags.
Bikers and veterans could be found scattered throughout the National Mall. Many gathered at the Vietnam and Korean War memorials. Some relaxed in the shade and drank beer.
A stage below the Lincoln Memorial hosted speakers and musicians, including former Wisconsin Governor Tommy Thompson, singer Nancy Sinatra and actor Robert Patrick.
"I thank you for your service and I thank you for my freedom," Patrick told the crowd. "Each and everyone of you are the real deal."
Throughout the day, at the edge of the stage, a scrawny, bearded man in tattered fatigues sat locked in a bamboo cage holding a sign reading "Never Forget."
Sunday's ride was part of a weekend of events that included a "blessing of the bikes" outside the National Cathedral and a day-long barbecue hosted by motorcycle manufacturer Harley-Davidson.
There were several other biker events across the country planned for the Memorial Day weekend. Rallies were held in New Mexico, Mississippi, Missouri and South Carolina with heightened security, according to media reports.
Last Sunday, 170 people were arrested in connection with the shootout among rival bikers that left nine dead and 18 wounded and turned a Waco, Texas restaurant into a blood-soaked crime scene.
