JERUSALEM — Israel's policy on issuing guns is restrictive, and armed guards at its schools are meant to stop terrorists, not crazed or disgruntled gunmen, experts said Monday, rejecting claims by America's top gun lobby that Israel serves as proof for its philosophy that the U.S. needs more weapons, not fewer.

Far from the image of a heavily armed population where ordinary people have their own arsenals to repel attackers, Israel allows its people to acquire firearms only if they can prove their professions or places of residence put them in danger. The country relies on its security services, not armed citizens, to prevent terror attacks.

The National Rifle Association responded to the Dec. 14 killing of 20 first-graders and six adults at a Connecticut elementary school by resisting calls for tighter gun control and calling for armed guards and police at schools. On Sunday, the lobby's chief executive, Wayne LaPierre, invoked his perception of the Israeli school security system to back his proposal.

"Israel had a whole lot of school shootings until they did one thing: They said, 'We're going to stop it,' and they put armed security in every school and they have not had a problem since then," LaPierre said on the NBC News show "Meet the Press."

Israel never had "a whole lot of school shootings." Authorities could only recall two in the past four decades.

In 1974, 22 children and three adults were killed in a Palestinian attack on an elementary school in Maalot, near the border with Lebanon. The attackers' goal was to take the children hostage and trade them for imprisoned militants.

In 2008, another Palestinian assailant killed eight young people, most of them teens, at a nighttime study session at a Jewish religious seminary in Jerusalem. An off-duty soldier who happened to be in the area killed the attacker with his personal firearm.

Israel didn't mandate armed guards at the entrances to all schools until 1995.

Israel's lightly armed school guards are not the first or the last line of defense. They are backed up by special police forces on motorcycles that can be on the scene within minutes.

Foreign Ministry spokesman Yigal Palmor spelled it out."We're fighting terrorism, which comes under very specific geopolitical and military circumstances. This is not something that compares with the situation in the U.S."