The president made a point to single out and honor numerous officers slain in the past year, and paused his speech to toss a hat to a child of a Phoenix officer killed in the line of duty.
Trump also signed a memorandum for recognizing Peace Officers' Memorial Week and Police Week. "The names of more than 21,000 men and women who wore the uniform grace the Memorial walls, and they deserve all the recognition this day bestows on them".
The first National Police Memorial Day was proclaimed by President John F. Kennedy in 1962, and the week in which it falls would then be designated National Police Week.
"On this solemn day, almost 400 new names will be inscribed on the National Law Enforcement Officers memorial, including three fearless souls from Maryland who were killed in the line of duty in 2016".
He added, "The attacks on our police must end, and they must end right now".
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"We give thanks for who these men and women were, and we celebrate what they did and what they stood for", said Attorney General Jeff Sessions during the service Saturday evening.
He added that it's "time to work with our cops, not against them".
"We have four line of duty deaths in our county, and that's at least four families, and those are four families and friends that want to honor those fallen", Rose said.
The memorial includes 21-thousand names of fallen law enforcement officers dating back to 1791.
Officers even showed off their skills at Autozone Park by providing a K9 demonstration and using the police helicopter to deliver the game ball on Monday.
McLane urges citizens to thank their local law enforcement for their service.