MEMPHIS, Tenn. (AP) — As National Guard troops make their way to Memphis, the memories of 1968, when thousands descended with bayonetted rifles and tanks, remain vivid for Joe Calhoun. During that time, he marched alongside sanitation workers and the Rev. Martin Luther King Jr.

King had come to support around 1,300 mainly Black sanitation workers striking against poor conditions after a defective garbage truck claimed the lives of two workers. King led a march in late March, which turned violent when clashes broke out between police and protesters, leading to a 16-year-old being fatally shot by an officer. The National Guard swiftly took their positions on the streets in response.

“You felt very uncomfortable just going about your daily routine, especially at night,” Calhoun mentioned. “They were stopping cars and randomly picking people out.”

Al Lewis, who was 14 at the time, recalls the announcement by Walter Cronkite on television that King had been shot and killed in Memphis. Almost instantly, gunfire erupted in a volume he had only heard during New Year’s celebrations. The National Guard rapidly reappeared, and he saw military vehicles and soldiers downtown during the day and Guard members patrolling neighborhoods at night.

President Donald Trump announced last month that the National Guard would be deployed to fight crime in Memphis alongside officials from various federal agencies. Republican Gov. Bill Lee, who backs the initiative, stated the troops will be deputized by the U.S. Marshals Service to provide crucial support for local law enforcement. The city has noted that Guard members will not have tanks.

Some Tennessee Guard members are already aiding with community safety patrols, security, and traffic control efforts to help curb crime, said Capt. Kealy Moriarty, a spokesperson for the state Military Department. It’s unclear how many Guard members are currently on the ground or expected to arrive later.

A handful were seen leaving the Shelby County Office of Preparedness last week. While state and federal authorities have been increasingly visible in Memphis, troops have yet to be seen in large numbers. At least nine armed Guard members patrolled Friday near the Pyramid, an iconic Memphis landmark, and at a visitor welcome center along the Mississippi River.

For years, Memphis has dealt with high violent crime, including assaults, carjackings and homicides. While this year’s statistics show improvement in several categories, including murders, many acknowledge that violence remains a problem.

The city is a majority Black epicenter for civil rights, where residents like Calhoun and Lewis remember the Guard responding during more than one period of unrest. A decade after King’s assassination, troops were in Memphis during a strike by firefighters and police when parts of the city were set ablaze.

Calhoun, 75, remains an activist and recently marched against the current deployment. He had hoped he would never again see the National Guard in his city.

“I’ve got four grandchildren, so much of what I do is to help make a better world for them, so they don’t have to go through the same thing. But it’s taken a lot longer than I thought it would,” he said.

Memphis is at ‘key moment,’ the governor says

Lee has previously said he doesn’t expect many more than 150 troops in Memphis, though he’s since said there is no estimate.

“You talked about the National Guard being in Memphis at key moments; I think this is a key moment for that city,” Lee said in responding to a reporter’s question. “They’ve been plagued with violence.”

Memphis was among several places in the South where the National Guard was deployed during the Civil Rights Movement, including Little Rock, Arkansas; Oxford, Mississippi; and places in Alabama.

A ‘show of strength’ in 1968

Looking back at 1968, Calhoun recalled sleeping in the Clayborn Temple and making the now-famous “I AM A MAN” signs for sanitation workers. And he remembers officers throwing tear gas into the church.

Associated Press accounts document the ensuing military presence, including this description from March 30, 1968: “Heavily armed police and 4,000 national guardsmen, sent to preserve order … patrolled the area around historic Beale Street. Plyboarded shop fronts and broken glass stood as testimony to the Thursday violence.”

As demonstrators emerged from Clayborn Temple for another mass march, AP documented how “the National Guard roared past in a show of strength which included four armored personnel carriers with mounted .30 caliber machine guns, six jeeps and several trucks filled with personnel.”

King blamed violence surrounding the marches on a “small group of young militants.”

“I wouldn’t have come if I had known the outbreak of violence was possible,” King said in an AP account. “I would have held up the march.”

Calhoun said the soldiers, some armed and others in armored vehicles, presented “a very imposing sight for young kids to see that on the way to school, to see that on the way to church or whatever. So, we do not want to see that at all.”

Additionally, he said Guard members at checkpoints targeted and harassed people who attended the 1968 marches downtown.

Troops return after King’s killing

A week after the violence, King was back in Memphis, where he promised to lead a second, peaceful march despite a federal court order against it. But he was killed by a sniper while standing on the balcony of the Lorraine Motel on April 4.

The assassination sparked civil unrest in Memphis and other U.S. cities.

Some 4,000 National Guard troops were reactivated in Memphis and a curfew reimposed, according to AP reports.

Lewis, now 71, saw Guard vehicles and armed Guard members on foot in the downtown area, but he never saw them fire their weapons or get physical with anyone. He did see some young men throw Molotov cocktails into a furniture store, setting it ablaze.

“I didn’t know what was happening. It was like an invasion of sorts,” Lewis said. “I felt fear and excitement, if you can understand the two happening at once. I didn’t know what was going to happen and how far it was going to go.”

Once used to put out fires, today’s Guard may be ‘beautifying’ Memphis

In 1978, Lewis was working for the U.S. Postal Service when local police and firefighters went on strike. Because of his job, he was allowed to drive home from work and pass through Guard checkpoints in the early morning darkness, despite a curfew. He recalls Guard members putting out fires.

“The police and the fire department were on strike, and there were a lot of fires being set and a lot of looting going on,” Lewis said. “Still, I didn’t feel the same menace that I felt like I did when King got killed.”

Mayor Paul Young, a Democrat, has listed some roles he thinks the Guard could help with now. They include monitoring police cameras, “beautifying” neighborhoods, or helping the homeless population.

Young has referenced the deployment after King’s assassination, saying he understands community fears about the upcoming action.

“We don’t want to invoke those same images here,” Young said.

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Mattise reported from Nashville, Tennessee. Associated Press corporate archivist Sarit Hand in New York City contributed.