A delegation of current and former law enforcement officials from Suffolk and Nassau County who remember the horrors of 9/11 are headed to Israel for a counterterrorism conference on how to keep residents safe.

The International Institute on Counter-Terrorism is being held in Herzliya, Israel, from Sept. 11 to 14 to discuss new strategies for and trends in terrorism.

Former Nassau County Assistant Police Commissioner Denis Monette, an associate with the group, said the trip is essential to build relationships with other law enforcement agencies.

“It takes a network to beat a network,” said Monette. “You can’t exchange business cards at the scene of a disaster. You better have a relationship before.”

The trip will include Inspector Michael Romagnoli, commanding officer of the Suffolk County Police Department, and Suffolk County Sheriff Vincent DeMarco.

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The conference will hold talks on a wide range of topics, including the rise of terrorism since 9/11 and the Islamic State group.

“I lost 37 Port Authority police co-workers and 84 co-workers that day and I never forget,” said Kenneth D. Honig, president of a critical response management company in North Bellmore and a former lieutenant with the Port Authority police.

Honig said he came into lower Manhattan after the first plane hit and got as far as West Street and stood in front of Stuyvesant High School while the first tower crumbled.

“I was down in the pit and down in the hole for the next couple of weeks, doing work,” Honing said. “I don’t want that to happen again. I will do anything to prevent something like that from happening again.”