It is well known that most stories of unidentified flying objects do not mention a UFO attack. At most, tense confrontation,  However, there are also known cases where witnesses claim that there has been an open clash with UFOs. All indications are that these incidents may have had a significant impact on changing the way the US military responds to the presence of UFOs. Fortunately, stories of their attacks are extremely rare. 

One of the evidences of the encounter with UFOs was declassified by MUFON (Mutual UFO Network - na US-based independent organization (civilian volunteers collecting records of the existence and appearance of UFOs) as part of the Hangar 1 documentary series, which premiered on February 28, 2014.

UFO in the demilitarized zone (DMZ)

On June 15, 1968, during the Vietnam War, there was a remarkable encounter with a UFO, known as the "DMZ incident." Lieutenant Pete Snyder and his crew aboard the PCF-12 patrol boat headed for the demilitarized zone between North and South Vietnam, where they oversaw the Cua Viet port area. At 12:30, Lieutenant Davis, aboard the second PCF-19 patrol boat, contacted Snyder and shocked him by saying that his boat was under fire from unidentified objects, apparently "enemy helicopters." At that time, however, no Vietnamese helicopters were moving in the air.

Snyder and his crew watched from a distance as a boat approached by two glowing UFOs approached, which subsequently destroyed the boat. Then both unidentified objects suddenly disappeared from view. Fortunately, two crew members of the PCF-19 survived the attack and were able to inform Snyder of how the whole event was going. According to them, UFOs have been watching them for a long time. Another member of the rescued crew, Steffers, described seeing two creatures sitting in the UFO observation area. He also said that although they were shot, he did not see any weapons. Snyder was ordered by the Navy to continue the patrol. After a while, his crew saw a UFO hovering in the air. Fearing that they might suffer the same fate as the crew of the PCF-19, Snyder ordered to shoot as soon as the UFO approached. However, the shooting was repeated and the surrounding ships were hit when the boat tried to escape. A later investigation revealed that the bullets fired by the crew at the UFO were returning to them, which could mean that they were bouncing off the protective field around the UFO.

In response to the UFO attack, the army sent Phantom F-3 fighters into the air at 20:4 to protect the patrol boats. However, the UFO flew quickly and headed over the Sea of ​​China. The Royal Australian Navy's HMAS Hobart moved along the coast. The Hobart commander reported seeing 30 UFO lights. Then the ship sent a radio message that two lights were approaching. The fighters soon came within range and fired at UFOs near Hobart. Suddenly the UFO disappeared, the situation calmed down and the fighters returned to base in Da Nang. 

The next morning, just at dawn, as Hobart moved near Tiger Island, she was suddenly struck. Unfortunately, sailor RJ Buttersworth was killed and two others were injured in the attack. Before the crew could react, Hobart was hit by two more missiles, which killed another crew member. 

In the distance, the sailors saw a UFO hovering on the starboard side of the ship. Interestingly, the descriptions matched what Lieutenant Snyder and his crew had witnessed the night before. After the attack, reports of UFOs flooded the Australian media for months. A later investigation revealed that the serial number of the missile that struck Hobart was identical to the number of the missile fired by one of the American Phantom F-4 fighters at UFOs. From this it was concluded that there was no assault fire from the UFO.

The question is, why didn't we hear about this incident? The first information appeared at a Pentagon press conference on October 16, 1973. From General George S. Brown's announcement, the public could learn that UFOs had been tracking troops in Vietnam for some time. Brown also revealed that "enemy helicopters" were the code name for UFOs. According to Brown, they were only visible at night and only in certain places

A change in UFO policy?

After the UFO attack in Vietnam, he appeared in a documentary television series hangar 1 discovered that the US military had changed its policy on UFOs. An instruction was issued to the Navy and fighter pilots to never shoot at UFOs again. George Filer (MUFON Director) said he had received information from the air traffic controllers about the regulation and added that "It is important for pilots to stay as far away from UFOs as possible." occurrence and thus prevent any confrontation. According to JCHarzant (executive director of MUFON), this change in US policy towards UFOs indicates that the military considers UFOs to be an invincible force and it would be desirable and appropriate to come to terms with this reality.

"I think it was a significant event in our history that taught us an important lesson on how to treat UFOs," says Harzan. "The fact that we have adopted a new protocol so that we do not take action against any unidentified flying objects indicates that our army admits that we cannot defeat UFOs."

A bizarre encounter with a UFO during is also researched and evaluated  Korean War.   Here, too, an incident could have occurred when General MacArthur considered using it  nuclear bombs.

Fortunately, UFOs seem to be trying to prevent war rather than engage in, or even provoke, a conflict.