A List of Offensives of World War II
This list is still being compiled.  If I am missing any operations or I have made a mistake please send additions or corrections to twelvealge@yahoo.com.

A-Go – Japanese attempt to create the Battle of the Philippine Sea
Aldertag – Aerial campaign over Britain August 8, 1940
Anvil / Dragoon – August 15, 1944 Allied landing in Southern France
Artus-Plan / Kathleen – Planned invasion of Ireland for summer of 1940 to be supported by the IRA
Avalanche – Salerno September 9, 1943
Barbarossa – German offensive against Russia beginning on June 22, 1941
Battleaxe – May 14-17, 1941 British offensive in North Africa
Brassard – Allied offensive to capture Elba June 17, 1944
Brewer – US attack on Admiralty Islands on February 19,1944
Brimstone – Allied offensive to capture Sardinia September 18, 1944
Bellicose – RAF bombing raid on Friedrichshafen on June 20, 1943
Blackcock – Allied Offensive along the Roer River January 13 to end of month 1945
Bluecoat – Extension of Goodwood and Spring July to August 1944
Bodenplatte – January 1, 1945 desperate attempt by the Luftwaffe to defeat the western allies air power
Brevity – May 14, 1941 North Africa
Catchpole – Allied invasion of the Eniwetok Island February 17, 1944
Chastise – RAF raid on the night of May 16/17, 1943 to blow up damns in the Ruhr Gebiet.
Clarion – Allied air attack on Germany February 22, 1945
Cobra – Normandy Breakout, July 25, 1944 General Bradley’s third attempt to Breakout of the Contentin peninsula between the Vire and Lozon rivers
Compass – Originally launched as a spoiling attack it turned into a successful counteroffensive versus the Italians in North Africa against the
Corkscrew – Allied aerial and sea bombardment on Pantelleria May 18, 1943
Crossbow – Allied air attack on German Rocket sites August 17, 1943
Crusader – The British offensive to capture Sidi Rezegh, November-December 1941
Desecrate – US attack of Palau Islands March 31, 1943
Detachment – US invasion of Iwo Jima February 19-March 8, 1945
Dracula – May 3-6, 1945 amphibious, land, and airborne offensive to capture Rangoon, Burma
Dynamo – May 1940 evacuation for Dunkirk
Epsom – June 28-July 2, 1944 attempt to capture Caen from the west
Fall Blau – Offensive for Army Group South with targets: Woronesh, Stalingrad, and Baku
Fall Braun – Army Group C attacked the Maginot Line in June 1940
Fall Gelb – Offensive in the Low Countries and the Ardennes May 1940
Fall Gruen – Capture of Czechoslovakia executed in May 1938
Fall Rot – Planned defense against a French and Czechoslovakian offensive 1935-37
Fall Weiss – Poland September 1939
Flintlock – Allied invasion of the Marshall islands.
Galvanic – USMC invaded Gilbert November 20-December 23, 1943
Gomorrah – Allied air raid on Hamburg July 24, 1943
Goodwood – Crossing of the Orne to capture Caen July, 1944
Grenade – US offensive towards the Rhein February 23, 1945
Ha-Go – February 1944 Japanese attempt to surround Allied forces in Burma
Hailstone – US carrier attack on Truk Island February 16-17, 1944
Herbstnebel / Wacht am Rhein – Battle of Bulge
Herkules – Planned invasion of Malta in 1942
Husky – July 10, 1943 Allied invasion of Sicily
Iceberg – US attack on Okinawa April 1, 1945
Ichi-go – Japanese Offensive that overran US airbases in Eastern China 1944
Jubilee – Allied attack on Dieppe August 11, 1942
Lightfoot – October 23-24, 1942 bombardment of Axis forces in North Africa
Longsuit – USMC invasion of Tarawa November 20-24, 1943
Marita – German invasion of Greece April 6-30, 1941 and Yugoslavia April 6-17, 1941
Market Garden – Allied land and airborne offensive in the Netherlands September 17-25,1944
Matador – British plan to defend Singapore, fell February 15, 1942
Meeting House – US fire bombing of Tokyo March 9, 1945
Merkur – German offensive to capture Crete April 25-May31, 1941
Mike I – US invasion of Luzon January 9, 1945
Millennium – RAF bombing of Cologne May 30, 1942
Olive – August 25 -October, 1944 Allied attempt to breakthrough the Gothic line in Italy
Overlord – Invasion of Normandy June 6, 1944
Pancake -
Pedestal -
Plunder – Allied Offensive to cross the Xanten, Wesel, and Rhein Rivers to capture Hamburg March 23-April 2, 1945.
Quicksilver – Allied deception plan to convince Germans of D-Day landing at Calais.
Reckless – US attack on Hollandia April 22, 1944
Retribution -
Seeloewe – Planned invasion of Great Britain
Shingle – Allied invasion of Anzio January 22, 1944
Slapstick -
Spring – An extension of Goodwood July 1944.
Starkey -
Strafgericht -
Supercharge – follow up to Lightfoot November 1-2, 1942 armoured assault in North Africa
Taifun – Battle for Moscow began October 2, 1941
Thursday – March 5, 1944 Chindit led offensive in Burma
Tidal Wave – US air attack on Ploesti oilfields August 1, 1943
Titanic – Allied dummy parachute drops in Normandy June 6, 1944
Torch – Allied invasion of North Africa, November 8, 1942
Tungsten – British naval air assault on the Tirpitz April 3, 1944
U-Go – Parallel operation to Ha-Go near Imphal February 1944
Uranus – Soviet offensive to surround Stalingrad November 19-27, 1942
Varsity – Allied airborne drop across the Rhein March 24-25, 1945
Watchtower – US invasion of Guadalcanal and Tulagi August 7, 1942
Weseuebung – German offensive in Denmark and Norway April 9 – June 10, 1940
Winter Storm – Soviet offensive to clear the lower Chir November 30, 1942
Zitadelle – Kursk July 5-20, 1943