The memorial took place on National Peace Officers Memorial Day, which also was the start of National Police Week.
"We don't ever want to forget the sacrifice that these officers paid, giving up their life in the line of duty", said Chief Mickey Miller.
He is the coordinator for Wisconsin's Law Enforcement Death Response, or LEDR Team, called whenever an officer is killed, to offer counseling and any support family and friends need.
He spoke outside the U.S. Capitol at the National Peace Officers' Memorial Service.
"It's nice to see people outside of law enforcement haven't forgotten and it's nice for the Mayors Coalition and the Governor's Office to put things together for this".
The President asked the Justice Department to develop new strategies to prevent and prosecute violent crimes against officers. The others died in years past, and have been added to the memorial in an effort to include the names of all officers killed in the line of duty, said Rogers.
Speaking about the numbers of ambush-style attacks on police officers that increased in numbers over the past year, Trump drew his own line in the sand and said, "Enough is enough".
The Law Enforcement Memorial Association held its annual Standing of the Memorial Guard, beginning Sunday night and ending at 7:25 p.m. Monday with a candlelight vigil. Established by a joint resolution of Congress in 1962, National Police Week recognizes law enforcement officers who have lost their lives in the line of duty for the safety and protection of others.
Vice President Mike Pence also addressed the crowd memorializing the officers.
Peace officers from Smith County placed 16 red roses on a wreath in recognition of the Texas law enforcement officers killed in the line of duty between May 15, 2016, and May 15, 2017.
"Now as president my highest duty is to keep America safe", Trump said.
Trump told a crowd of several thousand that "I will always support the incredible men and women of law enforcement as much as you have always supported me". "I hope it makes people thankful for the risks the police take to take care of our cities". They went into the dark seeking the unknown.
"We're here to pay our respects, to kick of the Police Memorial Week".