Friedrichstrasse Checkpoint (Checkpoint Charlie) at Berlin Wall / Soviet tanks (not seen in Berlin for 8 years) face American tanks across border / American tank crews watch through binoculars. Berlin Wall checkpoint on October 28, 1961...

Brandenburg Gate at Berlin Wall fronted by barbed wire and barrier / an army of troops and workers work to strengthen the wall / concrete slabs moved by crane / tank traps seen through wire / East German guards. Berlin Wall being built...

Group of West Berliners watch East German soldiers put up barbed wire barriers as the Berlin Wall is built / refugees wait / East German soldiers put up concrete posts and barbed wire fencing / Willy Brandt walks along looking angry....

The US quarantines all offensive weapons being shipped from Russia to Cuba / AERIAL of US military ships on ocean / US aircraft carrier USS Bon Homme Richard on ocean. Cuban Missile Crisis, military quarantines ships on October 25, 1962 ...

Crossing the Berlin Wall / cemetery with dogs and barbed wire fencing / men on the back of a truck pulling a ladder up the side of the Berlin Wall / Stanislaus Gefroerer, on opposite side of wall places his ladder against the other and...

Aerial views of Berlin divided by early version of Berlin Wall, Cold War. Aerials of early Berlin Wall on August 13, 1961 in Berlin, Germany (Footage by Getty Images)

President Bush and President Yeltsin announce an agreement by which the United States and Russia reduce their nuclear warheads / George Bush states, 'The Cold War Days Are Over'. George Bush, 'The Cold War Days Are Over' on June 16, 1992...

Crowd of women carry 'Muerte Al Invasor' poster in demonstration / crowd of women shouting and clapping, singing, and carrying posters, as they walk in demonstration / pictures of Castro held up / huge crowd at demonstration at night /...

/ view looking from Berlin Wall onto busy city streets below / tram car traveling down the road / CU street signs along the wall / bricked up buildings along the border. City streets around Berlin Wall on August 31, 1962 in Berlin,...

HD footage shows the explosion of the Chagan nuclear test conducted at the Semipalatinsk Test Site on January 15, 1965. Filmed on 35mm. Chagan was the first and largest of the 124 detonations in the Nuclear Explosions for the National...

President Kennedy visits the Berlin Wall / Brandenburg Gate / Kennedy up steps of platform to view the wall / East German guard looks back through binoculars / pan along Berlin Wall / Kennedy and party, including Willie Brandt, walk down...

The Berlin Wall being built at night. Pieces of wall are installed / Sign: Friedensallee / barbed wire / slabs of concrete are delivered / guards. The Berlin Wall being built at night on November 20, 1961 in East Berlin, Germany (Footage...

Cuban soldiers adjusting gun on city street / gun emplacements on beach / man holding gun on shoulder stands in front of bank window / Cuban guard by flag blowing in wind on balcony of building / people standing by sandbags in driveway /...

RDS-37 was the Soviet Union's first two-stage hydrogen bomb, first tested on November 22, 1955 at the Semipalatinsk test site. The weapon had a nominal yield of approximately 3 megatons. It was scaled down to 1.6 megatons for the live...

Building work continues on the Berlin Wall on the East side / sign: 'Friedrichstrasse' pan to East German troops / US troops at checkpoint behind sandbags with anti tank bazookas / East German troops stand as work on wall goes on behind...

/ High angle view of soldiers guarding the Brandenburg Gate / French soldier looks through binoculars / aerial of Reichstag. Berlin Wall: Brandenburg Gate on August 31, 1962 in Berlin, Germany (Footage by Getty Images)