* 1939 – 1945, the Second Battle of the Atlantic.

* 1945 – World War II: Sarajevo is liberated from German and Croatian forces by the Yugoslav Partisans.

* 1945 – World War II: the Battle of Slater's Knoll on Bougainville comes to an end.

* 1945 – Neal Boortz, American radio personality

* 1945 – Lee Jong-wook, Korean Director-General of the World Health Organization ( d. 2006 )

* 1945 – World War II: Führerbunker: Adolf Hitler and Eva Braun commit suicide after being married for one day.

* 1945 – Annie Dillard, American writer

* 1945 – Mimi Fariña, American singer-songwriter, musician, and activist ( d. 2001 )

* 1945 – Michael J. Smith, American astronaut ( d. 1986 )

* 1871 – Theodore Dreiser, American author ( d. 1945 )

* 1905 – Aris Velouchiotis, Greek military leader ( d. 1945 )

* 1945 – Jan Sloot, Dutch inventor ( d. 1999 )

* 1945 – World War II: Hiroshima, Japan is devastated when the atomic bomb " Little Boy " is dropped by the United States B-29 Enola Gay.

* 1945 – Ron Jones, English director ( d. 1993 )

* 1945 – Andy Messersmith, American baseball player

* 1945 – World War II: Nagasaki, Japan is devastated when an atomic bomb, Fat Man, is dropped by the United States B-29 Bockscar.

* 1945 – World War II: The Soviet Union declares war on Japan and begins the Manchurian Strategic Offensive Operation.

* 1945 – Barbara Delinsky, American author

* 1945 – Aleksandr Gorelik, Russian figure skater ( d. 2012 )

* 1945 – Posy Simmonds, English cartoonist

* 1866 – Giovanni Agnelli, Italian businessman, founded Fiat S. p. A ( d. 1945 )

* 1945 – Lars Engqvist, Swedish politician

* 1945 – Robin Jackman, English cricketer

* 1897 – Karl-Otto Koch, German SS officer ( d. 1945 )

Seaborg leaked the synthesis of the elements 95 and 96 on the U. S. radio show for children, the Quiz Kids, five days before the official presentation at an American Chemical Society meeting on 11 November 1945, when one of the listeners asked whether any new transuranium element beside plutonium and neptunium had been discovered during the war.

A United States postage stamp of 1945 shows the Arc de Triomphe in the background as victorious American troops march down the Champs-Élysées and U. S. airplanes fly overhead on 29 August 1944.

In early 1945, the U. S. army ran tests of various 2, 4-D and 2, 4, 5-T mixtures at the Bushnell Army Airfield in Florida, which is now listed as a Formerly Used Defense Site ( FUDS ).

The U. S. Army's last horse cavalry actions were fought during World War II: a ) by the 26th Cavalry Regiment ( PS ) in World War II — a small mounted regiment of Philippine Scouts which fought the Japanese during the retreat down the Bataan peninsula, until it was effectively destroyed by January 1942 ; and b ) on captured German horses by the mounted reconnaissance section of the U. S. 10th Mountain Division in a spearhead pursuit of the German Army across the Po Valley in Italy in April 1945.

From then until the end of the war in Europe on May 8, 1945, Eisenhower through SHAEF had command of all Allied forces, and through his command of ETOUSA, administrative command of all U. S. forces, on the Western Front north of the Alps.

Among notable recipients below flag rank are: X-1 test pilot Chuck Yeager and X-15 test pilot Robert M. White, who both received the DSM as U. S. Air Force majors ; Air Force Major Rudolf Anderson, the U-2 pilot shot down during the Cuban Missile Crisis ; director Frank Capra, decorated in 1945 as an Army colonel ; actor James Stewart, decorated in 1945 as an Army Air Forces colonel ( later Air Force Brigadier General ); Col. Wendell Fertig, who led Filipino guerrillas behind Japanese lines ; Col. ( later Major General ) John K. Singlaub, who led partisan forces in the Korean War ; and Maj. Maude C. Davison, who led the " Angels of Bataan and Corregidor " during their imprisonment by the Japanese, and Colonel William S. Taylor, Program Manager Multiple Launch Rocket System.

* 1945 – President Franklin D. Roosevelt meets with King Ibn Saud of Saudi Arabia aboard the USS Quincy, officially starting the U. S .- Saudi diplomatic relationship.

* 1945 – World War II: During the Battle of Iwo Jima, a group of United States Marines and a commonly forgotten U. S. Navy Corpsman, reach the top of Mount Suribachi on the island and are photographed raising the American flag.

At the end of World War II in Europe, in May 1945, the U. S. Army's Information and Educational Branch was ordered to establish an overseas university campus for demobilized American service men and women in Florence, Italy.

Animal Farm: A Fairy Story was published in Britain on 17 August 1945, and a year later in the U. S., on 26 August 1946.

The U. S. shipped food in 1945 – 47 and made a $ 600 million loan in 1947 to rebuild German industry.

The Big Three: Prime Minister of the United Kingdom | British Prime Minister Winston Churchill, President of the United States | U. S. President Franklin D. Roosevelt and Stalin at the Yalta Conference, February 1945.

Prime Minister of the United Kingdom | British Prime Minister Clement Attlee, President of the United States | U. S. President Harry S. Truman and Joseph Stalin at the Potsdam Conference, July 1945. At the Potsdam Conference from July to August 1945, though Germany had surrendered months earlier, instead of withdrawing Soviet forces from Eastern European countries, Stalin had not moved those forces.

* 1945 – World War II: Admiral Chester W. Nimitz is placed in command of all U. S. Naval forces in preparation for planned assaults against Iwo Jima and Okinawa in Japan.

* 1945 – A U. S. Army B-25 bomber crashes into the 79th floor of the Empire State Building killing 14 and injuring 26.

Between 1945 and 1980, the posture of Western European states towards Liberia was largely that of the U. S .. Americo-Liberian rulers received hundreds of millions of dollars in unrestricted foreign investment, mainly from the U. S., but also from Western Europe.

The U. S. turned over the city to the Red Army as it pulled back from the line of contact with Soviet forces in July 1945 to the pre-designated occupation zone boundaries.

One view emphasizes events occurring during and after the U. S. Occupation of Japan ( 1945 – 1952 ), and stresses U. S. cultural influences, including U. S. comics ( brought to Japan by the GIs ) and images and themes from U. S. television, film, and cartoons ( especially Disney ).