In 1953 the French and Viet Minh forces had been at war for seven years. The climactic encounter of the war occurred at Dien Bien Phu, a small hamlet in northwestern Vietnam, in a battle that neither side could afford to lose

What starts as a ripple becomes a wave, and with the United States involvement in Vietnam, it began as a contingent of U.S. "military advisors" after the attack at Dien Bien Phu. From there it turned into "non-official combat missions," and finally, after an unprovoked torpedo attack by a North Vietnamese patrol boat against the unsuspecting U.S. destroyer Maddox, it became "The Undeclared War."

While the method of "search and destroy" is the ultimate goal for any armed conflict, it developed a new face in Southeast Asia during the Vietnam War. With the absence of an actual front line, the North circumvented skirmishes by entering neighboring Cambodia, only to reappear within striking distance of the South stronghold of Saigon. With such bold initiative, the American contingent retaliated with heavily armed helicopter gunships from the U.S. First Air Cavalry Division, thus introducing the world's first helicopter-based military formation at the battle of the La Drang Valley.

Expanding its presence in 1966, the U.S. Army sets up patrols in the south to draw out Viet Cong guerrillas, but can't force a decisive battle. Included: veterans recall missions to uncover Viet Cong bases; the political climate in Saigon.

Viet Cong incursions in 1967 prompt the U.S. to reinforce key southern bases, unaware that the North Vietnamese were planning an all-out assault for early 1968. Included: combat footage; comments from veterans.

Viet Cong guerrillas, backed by the North Vietnamese Army, staged a massive offensive against major cities and U.S. bases in January 1968, during the Tet holiday.

Unlike the two world wars and the many before, the conflict in Vietnam was void of a so-called front line. Battles were fought in pockets of resistance, with troops dropped in by helicopter. What did exist was the section of the country dividing the North from the South known as the DMZ (De-Militarized Zone). This was often an arena of heavy combat, and Battlefield Vietnam: War on the DMZ highlights such furious fighting as "Operation Hastings" and "Operation Prairie."

In early 1968, American and allied forces fought the North Vietnamese Army in one of the most dramatic battles of the Vietnam War. For 77 days, two powerful NVA Divisions laid siege to the U.S. Marine Corps base at Khe Sahn.

The first of two programs on American bombing during the war, concentrates on the campaign prior to 1965, and examines how the Communists responded to U.S. air superiority.

The air war against the north intensifies as fighting in the south escalates. The U.S. targets North Vietnamese transport and supply routes (some of them in Laos and Cambodia), culminating in the so-called Christmas bombings of Hanoi and Haiphong in December, 1973.

The Paris Peace Accord finally brought an end to the Vietnam War, and the last U.S. Soldiers left Vietnam on March 29th, 1973. Two years later, Saigon fell to the North Vietnamese Army. Vietnam was reunited.

The U.S. withdrawal left the South Vietnamese with a well equipped but poorly led army unable to contain the 1974-75 Communist assault that ended in the capture of Saigon.

Covering the leaders, the equipment, and the men, as well as the battles, it covers the period from the beginning of the war in Africa until the end where the Axis is expelled. The main battle covered here is the last battle of El Alamein.

The campaign in Tunisia saw the battles that finally ended the brutal war in the desert. The arrival of the British 1st Army gave the Allies a six-to-one numerical advantage in troops and a fifteen-to one superiority in tanks, guns, and aircraft. The Allied blockade in the Mediterranean also began to bite, making the beleaguered Germans short of fuel, food, and ammunition. Eventually, all German troops in Tunisia surrendered.

Guadalcanal was the first major land battle of the Southern Pacific campaign. The island was considered key to the defence of eastern Australia and was the first step in the "march" up the Solomon Island chain to neutralize the key Japanese base at Rabaul, open up the road to the Philippines, and ultimately to Japan itself.

This is the story of the crucial battles for control of the Mediterranean, North Africa, and the irreplaceable oil fields of the Middle East. The program covers the great battles between the Italian Navy and British Navy, the land campaigns in the North African desert between Rommel's Afrika Korp and the British 8th Army, and Britain's struggle to retain its control of Malta. Additionally featured is the war for control of the skies between the German Luftwaffe and the RAF, eventually joined by the US Army Air Force, and the story of the war in Greece.

This is the story of one of Second World War's most harrowing episodes. The 890 day siege of the Soviet Union's second city has come to epitomise the misery, suffering and savagery of the war on the Eastern Front. The city was not finally liberated by Soviet troops until 19th January 1944 - by that time 600,000 of its citizens had starved to death and 200,000 more had perished in the bombing. This is a brand new episode from the landmark television series 'Battlefield'. Featuring fascinating archive footage from all over the world the programme includes a review of the political and military situation before the battle, portraits of leaders and commanders, an explanation of weapons and tactics and the story of the battle itself. Vivid graphics place the battle into the context of the war as a whole.

The convoys that sailed across the Atlantic Ocean bringing vital supplies to Britain faced one of the most deadly threats of the war. Hidden deep beneath the waves were German U-boats. This program follows the evolution of the Atlantic War, from the beginnings of the U-Boat war, to the "Happy Time" when German submarines almost brought Britain to her knees, to the eventual Allied triumph for control of the Atlantic sea-lanes. Also see the critical role that superior Allied technology played in winning the war and how British cryptographers successfully broke the German naval codes.

The annihilation of an entire army amidst the charred and frozen ruins of Stalingrad was catastrophe for Nazi arms. Thereafter, the colossus of the Red Army was never to lose the initiative in the East.

The infamous Japanese attack on the US naval base at Pearl Harbour in Hawaii was one of the most significant events of World War II. Though brilliantly planned and executed, and though it dealt a crippling blow to the US Pacific Fleet, it failed to inflict any damage on the US aircraft carriers. Moreover, the attack brought the US and its industrial might into the war with disastrous consequences for the Axis powers.

The battle for Okinawa, chosen to be the final springboard for an Allied invasion of Japan, claimed more American lives than any other battle in the Pacific campaign. The Japanese had constructed a formidable series of defences and were prepared to fight for every inch of the island's soil. The battle included a 700-plane Kamikaze raid against the US naval fleet. US casualties were estimated to be 49,000. Ultimately US forces took control of the island in June 1945 and in August, the atomic bombing of Hiroshima and Nagasaki brought the war against Japan to a dramatic end.

The longest continuous military campaign of WWII, The Battle of the Atlantic raged across the ocean from 1939 till 1945, pitting feared U-boats and other German naval warships against Allied shipping and troop convoys.

Hitler's plan for the conquest of Russia called for a classic Blitzkrieg offensive, which would be pressed ruthlessly to its conclusion within the course of a single season's campaign.

When victory in North Africa seemed assured, Allied Planners turned their attention to Italy. The objective was to seize Rome, knock Italy out of the war and push north towards Austria.

The Allies were determined to take the war to Germany both to disrupt German war production and weaken civilian morale, and in retaliation for the Nazi terror bombing of England. The "Strategic Bombing Campaign" by the RAF and the USAAF was one of the most controversial campaigns of WWII and cost thousands of Allied lives and caused tens of thousands of civilian deaths.