1965 January 1 - February 7, 1965
	Vietcong forces mount a series of attacks across South Vietnam. They briefly seize control of Binh Gia, a village only 40 miles from Saigon. Two hundred South Vietnamese troops are killed near Binh Gia, along with five American advisors.		The South Vietnamese lost 200 men at Binh Gia
	February 7, 1965
	A U.S. helicopter base and advisory compound in the central highlands of South Vietnam is attacked by NLF commandos. Nine Americans are killed and more than 70 are wounded. President Johnson immediately orders U.S. Navy fighter-bombers to attack military targets just inside North Vietnam.
	February 10, 1965
	A Vietcong-placed bomb explodes in a hotel in Qui Nonh, killing 23 American servicemen.		One of the American dead is carried to a waiting transport
	February 13, 1965
	President Johnson authorizes Operation Rolling Thunder, a limited but long lasting bombing offensive. Its aim is to force North Vietnam to stop supporting Vietcong guerrillas in the South.
	March 2, 1965
	After a series of delays, the first bombing raids of Rolling Thunder are flown.
	April 3, 1965
	An American campaign against North Vietnam's transport system begins. In a month-long offensive, Navy and Air Force planes hit bridges, road and rail junctions, truck parks and supply depots.
	April 7, 1965
	The U.S. offers North Vietnam economic aid in exchange for peace, but the offer is summarily rejected. Two weeks later, President Johnson raises America's combat strength in Vietnam to more than 60,000 troops. Allied forces from Korea and Australia are added as a sign of international support.
	May 11, 1965
	Two and a half thousand Vietcong troops attack Song Be, a South Vietnamese provincial capital. After two days of fierce battles in and around the town, the Vietcong withdraw.
	June 10, 1965
	At Dong Xai, a South Vietnamese Army district headquarters and American Special Forces camp is overrun by a full Vietcong regiment. U.S. air attacks eventually drive the Vietcong away.
	June 27, 1965
	General William Westmoreland launches the first purely offensive operation by American ground forces in Vietnam, sweeping into NLF territory just northwest of Saigon.		General Westmoreland
	August 17, 1965
	After a deserter from the 1st Vietcong regiment reveals that an attack is imminent against the U.S. Marine base at Chu Lai, the American army launches Operation Starlite. In this, the first major battle of the Vietnam War, the United States scores a resounding victory. Ground forces, artillery from Chu Lai, ships and air support combine to kill nearly 700 Vietcong soldiers. U.S. forces sustain 45 dead and more than 200 wounded.
	September - October 1965
	After the North Vietnamese Army attacks a Special Forces camp at Plei Mei, the U.S. 1st Air Cavalry is deployed against enemy regiments that identified in the vicinity of the camp. The result is the battle of the Ia Drang. For 35 days, the division pursues and fights the 32d, 33d, and 66th North Vietnamese Regiments until the enemy, suffering heavy casualties, returns to bases in Cambodia.
	November 17, 1965
	Elements of the 66th North Vietnamese Regiment moving east toward Plei Mei encounter and ambush an American battalion. Neither reinforcements nor effective firepower can be brought in. When fighting ends that night, 60 percent of the Americans were casualties, and almost one of every three soldiers in the battalion had been killed.
	1966 January 8, 1966
	U.S. forces launch Operation Crimp. Deploying nearly 8,000 troops, it is the largest American operation of the war. The goal of the campaign is to capture the Vietcong's headquarters for the Saigon area, which is believed to be located in the district of Chu Chi. Though the area in Chu Chi is razed and repeatedly patrolled, American forces fail to locate any significant Vietcong base.		American tanks and troops execute Operation Crimp
	February 1966
	Hoping for head-on clashes with the enemy, U.S. forces launch four search and destroy missions in the month of February. Although there are two minor clashes with Vietcong regiments, there are no major conflicts.
	March 5, 1966
	The 272nd Regiment of the Vietcong 9th Division attack a battalion of the American 3rd Brigade at Lo Ke. U.S. air support succeeds in bombing the attackers into retreat. Two days later, the American 1st Brigade and a battalion of the 173rd Airborne are attacked by a Vietcong regiment, which is driven away by artillery fire.
	April - May 1966
	In Operation Birmingham, more than 5,000 U.S. troops, backed by huge numbers of helicopters and armored vehicles, sweep the area around north of Saigon. There are small scale actions between both armies, but over a three week period, only 100 Vietcong are killed. Most battles are dictated by the Vietcong, who prove elusive.		Finding the Vietcong proves to be difficult
	Late May - June 1966
	In late May 1966, the North Vietnamese 324B Division crosses the Demilitarized Zone (DMZ) and encounters a Marine battalion. The NVA holds their ground and the largest battle of the war to date breaks out near Dong Ha. Most of the 3rd Marine Division, some 5,000 men in five battalions, heads north. In Operation Hastings, the Marines backed by South Vietnamese Army troops, the heavy guns of U.S. warships and their artillery and air power drive the NVA back over the DMZ in three weeks.
	June 30, 1966
	On Route 13, which links Vietnam to the Cambodian border, American forces are brutally assaulted by the Vietcong. Only American air and artillery support prevents a complete disaster.
	July 1966
	Heavy fighting near Con Thien kills nearly 1,300 North Vietnamese troops.
	October 1966
	The Vietcong's 9th Division, having recovered from battles from the previous July, prepares for a new offensive. Losses in men and equipment have been replaced by supplies and reinforcements sent down the Ho Chi Minh trail from North Vietnam.
	September 14, 1966
	In a new mission code-named Operation Attleboro, the U.S. 196th Brigade and 22,000 South Vietnamese troops begin aggressive search and destroy sweeps through Tay Ninh Province. Almost immediately, huge caches of supplies belonging to the NLF 9th Division are discovered, but again, there is no head-to-head conflict. The mission ends after six weeks, with more than 1,000 Vietcong and 150 Americans killed.		An American soldier examines a supply cache
	End of 1966
	By the end of 1966, American forces in Vietnam reach 385,000 men, plus an additional 60,000 sailors stationed offshore. More than 6,000 Americans have been killed in this year, and 30,000 have been wounded. In comparison, an estimated 61,000 Vietcong have been killed. However, their troops now numbered over 280,000.

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