1939 09 01: Bombing of Wielun turns WWII into a World War, Luftwaffe, 1K killed.
1939 09 01: Bombing/shelling of Warsaw, Luftwaffe, 40K killed.
1940 09 07: Firebombing of London, Coventry, etc. starts, Luftwaffe (the Blitz).
1940 05 10: Firebombing of London, Coventry, etc. ends.
1940 05 14: Bombing of Rotterdam, NL, Luftwaffe, 1K killed.
1940 05 14: Bombing of Hamburg begins, RAF.
1941 12 07: Bombing of Pearl Harbor, IJNAS (Imperial Japanese Naval Air Service), 2.4K killed.
1943 07 24: Firebombing of Hamburg, USAAF and RAF, 50K killed.
1945 02 13: Firebombing of Dresden, USAAF and RAF, 25K-35K killed.
1945 02 19: B-29 missions against Tokyo start.
1945 02 25: Firebombing of Tokyo, USAF, 28,000 buildings destroyed.
1945 03 10: Firebombing of Tokyo, USAF, 100K killed.
1945 03 17: Firebombing of Kobe, USAF, 9K killed.
1945 04 12: FDR dies suddenly (stroke). ===========================
1945 04 30: Hitler suicides.
1945 05 07: Germany surrenders.
1945 07 20: Attempt to bomb Japanese Imperial Palace misses in overcast.
1945 07 26: Potsdam Declaration (Truman/Churchill/Chiang), This ultimatum stated that, if Japan did not surrender, it would face "prompt and utter destruction."
1945 07 28: Premier Kantaro Suzuki rejects Potsdam Declaration.
1945 08 06: Nuclear bombing of Hiroshima, USAF, 140K killed (inc. deaths up to end of 1945).
1945 08 09: Nuclear bombing of Hiroshima, USAF, 80K killed (inc. deaths up to end of 1945).
1945 08 10: B-29 missions against Tokyo end (last mission).
1945 08 15: Japan surrenders: Emperor Hirohito accepts the Potsdam Declaration.
1945 11 01: Scheduled commencement of invasion of Kyushu (not carried out).
1946 03 10: Scheduled commencement of invasion of Honshu (not carried out).
Operation Gomorrah caused at least 50,000 deaths, and left over a million German civilians homeless. Approximately 3,000 aircraft were deployed, 9,000 tons of bombs were dropped, and over 250,000 homes and houses were destroyed. No subsequent city raid shook Germany as did that on Hamburg; documents show that German officials were thoroughly alarmed, and there is some indication from later Allied interrogations of Nazi officials that Hitler stated that further raids of similar weight would force Germany out of the war. Hamburg was hit by air raids another 69 times before the end of World War II.
United States strategic bombing of Japan
The United States strategic bombing of Japan took place between 1942 and 1945. In the last seven months of the campaign, a change to firebombing tactics resulted in great destruction of 67 Japanese cities, as many as 500,000 Japanese deaths and some 5 million more made homeless. Emperor Hirohito's viewing of the destroyed areas of Tokyo in March 1945, is said to have been the beginning of his personal involvement in the peace process, culminating in Japan's surrender five months later.