Rather, we saw it in all-too-real life as guerrillas based in Chechnya mounted bloody raids on neighboring Dagestan.

LEAD: About 5,000 non-Communist guerrillas mounted major attacks today to reinforce gains in northwestern Cambodia but met strong resistance from Government troops, a guerrilla official said.

The guerrillas mounted a terrorist campaign against the Sinhalese-dominated Government in 1987.

The guerrillas murdered two U.S. airmen in January, then mounted a fresh offensive.

Monthlong Rebel Offensive But, parallel to the peace talks, the guerrillas mounted a monthlong offensive that has killed 108 people and has caused millions of dollars in economic damage.

In June 1976, Palestinian guerrillas mounted a frontal attack against Syrian tanks that were deployed in Sidon.

The guerrillas announced a 10-day cease-fire to coincide with the meeting last month in Mexico City, but have since mounted an offensive in which scores of people have been killed.

In the absence of any public declarations, the reasons the guerrillas have mounted an offensive now are unclear.

The guerrillas have mounted a major propaganda campaign against the air force, whose aerial gunships have forced the rebels onto the defensive.

Attacks against the Iraqi police have been common in recent months as the guerrillas have mounted a fierce campaign to intimidate the supporters of the American occupation and the new Iraqi government.