The ninth annual San Fernando Valley Veterans Day Parade began at 11:11 a.m. at Laurel Canyon and San Fernando Mission boulevards in Mission Hills.
Forest Lawn also conducted its 53rd annual Veterans Day program starting at 11 a.m. Sunday.
Capt. Justin L. Babcock, company commander of the U.S. Army Recruiting Company, was the keynote speaker.
Los Angeles County Supervisor Mike Antonovich and Michael Johnson, president of the Montford Point Marines Association, also spoke.
The program, which was held at Forest Lawn-Hollywood Hills, featured an aerial performance by the Golden Stars Skydiving Team.
There were also performances by soloist Victoria Gordon and patriotic musical arrangements by the the Band of California Battalion.
El Monte observed the holiday with a 9 a.m. groundbreaking of a $12 million apartment development at 11254 Ramona Blvd. that will serve veterans in the San Gabriel Valley.
The celebration also featured a flyover by the Condor Squadron and a color guard presentation.
West Hollywood held its annual Veterans Day ceremony at the Sal Guarriello Veterans Memorial at the intersection of Holloway Drive and Santa Monica Blvd.
The event featured Rep. Adam Schiff, Dave Culmer, chairman of the National Veterans Foundation and Service Director for the American Legion in Los Angeles County, and Andrew Harland, director of Vietnam Veterans in the Media.
In Orange County, Chapman University held a production of "If All the Sky Were Paper," a play by Andrew Carroll based on his journey around the world to collect letter written during wartime.
Veterans Day has its roots in a proclamation issued by President Woodrow Wilson in November 1919, a year after World War I ended, designating Nov. 11 as Armistice Day.
States soon starting declaring Nov. 11 a legal holiday. Congress made it a federal holiday in 1938, dedicated to the cause of world peace.
In 1954, following World War II and the Korean War, Congress, at the urging of veterans service organizations, passed a law renaming Armistice Day as Veterans Day.
From 1971-1977, Veterans Day was held in late October. A 1975 law returned it to Nov. 11, beginning in 1978.