The B-52 bomber is one of the world's most advanced strategic bombers. It first flew in 1952 and is still in service today. To this day, few bombers in the world have come close. And today's B52 is also different from its predecessors, with more than half of its components modernized and upgraded. According to recent media reports, the U.S. military is also seeking funding to upgrade the B-52's engines, and if successful, the bomber could be in service until around 2050.

Although it is a legend, the bomber is not invincible.

The Vietnam War was a 20-year war between the capitalist countries led by the United States and the socialist countries led by Vietnam during the Second World War. strong>since the largest localized war in Southeast Asia. It was also the largest war involving U.S. forces since the end of World War II. However, the war still ended in victory for the North Vietnamese, whose regime was able to unify the entire country. The war claimed 58,000 lives in the United States, more than 5,000 in Korea, and its largest followers, 310,000 in the South Vietnamese regime and between 500,000 and 1 million in the North Vietnamese regime.

During this long and grueling war, the U.S. military hoping that its superior combat forces would overwhelm the North Vietnamese army, it sent a large number of new weapons into battle. Among them, the B-52 " Stratospheric Fortress strategic bomber also participated in the Vietnam War as the first combat identity, and dropped a large amount of explosives in Vietnam, which brought serious disaster to the North Vietnamese soldiers and civilians. The North Vietnamese army did not have significant air defenses to counter the B-52s and their escorts, and given their relative weakness, the B-52s were for some time large enough, with little or no self-defense, to be able to fly over North Vietnam.

When the war came to a crunch, however, advanced Soviet air defense weapons (such as the S-75 anti-aircraft missile) were added to the North Vietnamese air defense system and became layered. The Soviets wanted to use the North Vietnamese army to test the effectiveness of Soviet air defense weapons and sent a large number of technical experts to North Vietnam for training. The North Vietnamese army immediately deployed these air defense weapons in areas where b-52 bombers were most likely to be found in large numbers, and during the Vietnam War, the North Vietnamese shot down 31 b-52 bombers, shattering the myth that the aircraft was invincible in Vietnam. According to the analysis, the U.S. military has sometimes carried out its missions without first destroying North Vietnamese military radar and air defense systems, which puts the b-52 at high risk of being shot down. Therefore, the U.S. military attaches great importance to SEAD tactics in the future.

Suppression of enemy airborneness is the suppression of enemy air weapons on land. It is defined as the first action in an entire offensive operation, thus providing a safe environment for air attack. Only about one-third of enemy air attacks are safe. The Army now combines SEAD with its newest "death" (destroying enemy air damage "safely"), which claims that the former is relatively safe; the latter is designed to destroy all air defense weapons in the mission area.