The most secret unit of the U.S. army in world history

Secrecy in the war on gold, therefore, to command at times so it's important to keep your best assets in secret from the public and at the same time from the enemy. Representatives of the American army at one time or another acknowledged the existence of the units appearing in this list, but many of their missions were classified for many decades. When it comes to units that are still in force, the public has to be content with nothing telling bits of information.

Group of special purpose Task Force 88 (Task Force Black)

According to different sources, either different names for the same group, or we are talking about different groups operating or not. Anyway, the name is mentioned in posts about the group that conducted anti-terrorist operations in Iraq and Afghanistan during US military intervention. In many sources this unit is described as a joint American-British group, consisting of the best soldiers the us Navy seals, the group "Delta" and the British SAS special forces. Special forces were involved in the scandal when there were rumors that it has crossed the border to RAID in Syria. Also there are opinions that this group is back to destroy ISIS (a terrorist organization banned in Russia). If she ever stops acting.

Test battalion 6493 (6594 Test group)

These units of the U.S. air force existed from 1958 to 1986, and their task was to catch "falling stars". They flew from the airfield in Hawaii and caught the container with films first American spy satellites. These satellites included in the program of the "Crown" flew around the Earth and photographed. Then they dumped jars of negatives over the Pacific, where members of this unit were supposed to catch them. The technology was surprisingly primitive. The plane with a large hook on the tail had to cling to the parachute container with the film, which flew through the atmosphere to the ground. If the aircraft was not able to catch the container, or the weather was too bad to attempt to do so, coast guard rescue, who served in this unit, caught film of water. The battalion managed to catch more than 40 thousand containers in 27 years. When its composition was not engaged in catching of intelligence, the pilots supported the rescue mission in the district of Hawaii. They managed to rescue 60 people.

A detachment of the US army "Delta"

Like other units in the list, "Delta" in recent years changed its name several times. To form an elite counter-terrorism unit repeatedly offered back in the 1970s, and it is believed that Delta force was created in late 1977. The history of this division began with the resounding failure of "operation Eagle claw" to rescue the hostages from the US Embassy in Tehran in 1980. Since then, the "Delta" successfully fought in various operations, including the invasion of Panama, the Gulf war and the hunt for Osama bin Laden in the mountains of Tora Bora. Since the unit operates to this day, most of his missions are classified.

Navy seals — SEAL Team 6 (DEVGRU)

SEAL abbreviation means "SEa, Air and Land" ("sea, air and land") and coincides in spelling with the word "seal" — a seal. This unit specializiruetsya on counterterrorism, special reconnaissance, hostage rescue and personal security. Since the terrorist attacks on the world trade center in new York on 9 September 2001, the budget and responsibilities of the Navy seals has increased considerably. Now in this special 1,800 people, including several women that perform intelligence functions. The seals work since 1981. Their most famous operation — the elimination of Osama bin Laden and the rescue of captain Phillips from Somali pirates.

7781 army unit (39th of the operational unit of special forces)

This unit "green berets" worked in Berlin from 1956 to 1984, and during its history several times changed the name. His job was to ensure the safety of West Berlin from the provocations of the Communists and be ready to resist in case of capture of the city. The members of the unit had the classic intelligence training and was equipped with gadgets no worse than James bond, for example firearms in the lighter.

The office of strategic services (Office of strategic services, OSS)

The office of strategic services was formed in 1942 with the massive task of collecting and analyzing strategic information and conduct "special operations not assigned to other agencies." Because few people from the security services was the agents who conducted the RAID during the Second world war, it gave the Bureau a lot of room to maneuver. Under the leadership of Colonel William Donovan, nicknamed Wild bill, a tiny Agency conducted the RAID, he sold arms and was carrying spies, supported resistance groups in the territory of Nazi Germany and collected intelligence. It is even used first in U.S. history, a universal force, acting on the sea, in the air and on land.