'Regent' was a British special forces operation by the Belgian Independent Parachute Company (5th Special Air Service) to support British armoured forces tasked with finding a... Read More

'Regenwurm' was a German programme to design, develop, manufacture and deploy mobile launching equipment for the V-2 ballistic missile in an effort to evade the detection and ... Read More

'Regulation' was a British naval operation to locate, intercept and either capture or sink German blockade-runners in the Bay of Biscay (February/August 1943). , Initially con... Read More

'Regulta' was the British movement of Brigadier C. H. Boucher’s Indian 20th Brigade of Major General W. A. K. Fraser’s (from 15 May Major General W. J. Slim’s) Indian 10... Read More

'Rei' was a Japanese naval gunfire bombardment of the 'Love III' assault force and beach-head on Mindoro in the Philippine islands group (24/27 December 1944)., Under the comm... Read More

'Reichenau' was a Polish resistance propaganda operation designed to discredit Generalfeldmarschall Walter von Reichenau, commander of the German 6th Army on the Eastern Front... Read More

'Reinforcement' was an Allied unrealised plan to bolster Major General Matthew B. Ridgway’s US 82nd Airborne Division with Major General R. E. Urquhart’s British 1st Airbo... Read More

'Reinhard' (i) was the German undertaking to exterminate all Polish Jews as the first phase of the planned extermination of all Jews in German-controlled Europe (November 1941... Read More

'Reinhard' (ii) was a German and Croat operation against the partisan forces of Marshal Josip Broz Tito in and around Ljubija in the puppet state of Croatia within German-occu... Read More

'The 'Reinhard-Linie' was a German defence line on the western side of south central Italy, running to the north-east from its link with the 'Gustav-Linie' defences at Sant' A... Read More

'Reissewolf' was a U-boat wolfpack operation in the North Atlantic against the HG.75 convoy (22/31 October 1941). , The wolfpack comprised U-73, U-77, U-101, U-432, U-502, U-5... Read More

'Relict' was a British unrealised plan within 'Triplex' for a division of the forces (air striking force and army ground force) earmarked for service in Turkey should that nat... Read More

'Relief' was a British temporary deployment of RAF flying boat units, normally based on the coasts of Egypt, India and Ceylon, along the coast of East Africa (1943/44)., One o... Read More

'Remarkable' was a British series of naval undertakings to use submarines for the landing of Special Operations Executive agents on the coast of Japanese-occupied Malaya (Febr... Read More

'Rembrandt' was a British decoy operation within 'Vigorous' (ii) involving the sailing from Port Said of the MW.11C diversionary group (11/13 June 1942)., Comprising the 6,800... Read More

'Remus' was a British tactical deception in support of 'Romulus' (ii) in the Arakan western coastal region of Burma (December 1944). ... Read More

'Renate' (i) was a German naval minelaying operation by two torpedo boats, namely Kondor of Kapitänleutnant Helmut Neuss’s 5th Torpedoboots-Flottille and Wolf of Korvettenk... Read More

'Renate' (ii) was a German operation against the partisan forces of Marshal Josip Broz Tito on the Muter peninsula of the puppet state of Croatia in German-occupied Yugoslavia... Read More

'Rennstrecke' was a German unrealised plan for the aerial delivery of essential supplies to a body of troops supposedly cut off behind the Soviet lines (1944)., The existence ... Read More

'Reno' was a US series of five plans for the advance of the forces of General Douglas MacArthur’s South-West Pacific Area command through the Japanese-occupied Bismarck isla... Read More

This was a British half of 'Splendid' of which 'Rodney' was the other component (30 December 1943)., In this undertaking by the Special Operations Executive, the submarine Mar... Read More

'Rentier' (i) was the German advance to the east from the northern part of occupied Norway by General Eduard Dietl’s Gebirgskorps 'Norwegen' of Generaloberst Nikolaus von Fa... Read More

'Rentier' (ii) was German operation against partisan forces in German-occupied Greece (February 1944). ... Read More

'Repeatedly' was a British naval minelaying operation off Singapore (1944). ... Read More

'Report' was a British series of three operations within the proposed 'Anakim' (i) recapture of Burma (1943). ... Read More

'Reproach' was a British unrealised plan by the Special Operations Executive to land a party for the protection of power stations on the Lofoten islands group off the coast of... Read More

'Repulse' was a British air operation organised by Field Marshal Sir Bernard Montgomery’s Allied 21st Army Group in Belgium to deliver urgently needed supplies (23/27 Decemb... Read More

'Request' was a British naval undertaking by Admiral Sir Andrew Cunningham’s Mediterranean Fleet to deliver supplies to Major General R. N. O’Connor’s Western Desert For... Read More

'Reservist' was an Allied unsuccessful attempt to seize vital points in Oran, most notably the harbour and its installations, before the Vichy French could destroy them during... Read More

'Residence' (i) was a British naval undertaking, later renamed and implemented as the 'Grog' (i) operation, comprising air attacks and shore bombardment on the port facilities... Read More

'Residence' (ii) was a series of British naval undertakings to land parties of Special Operations Executive and Secret Intelligence Service agents on the coast of the island o... Read More

'Result' (i) was a British naval undertaking to attack the north-western coast of the Italian mainland and undertake a gunfire bombardment of Genoa after 'Picket' (i) (31 Janu... Read More

'Result' (ii) was British naval undertaking to land a party of Special Operations Executive agents on the north-east coast of the island of Sumatra in the Japanese-occupied Ne... Read More

'Retribution' was an Allied programme of naval measures, the maritime counterpart of 'Flax', against the Axis shipping involved in the attempted withdrawal of the German and I... Read More

'Reunion' was a US operation to recover, via airfields in the Bucharest area, all USAAF personnel incarcerated in Romania following that country’s surrender and change of si... Read More

'Revenge' was the Allied operation by the two divisions of Lieutenant General Sir Bernard Freyberg’s New Zealand Corps, within General the Hon. Sir Harold Alexander’s Alli... Read More

The 'Rezhitska-Dvinsk Offensive Operation' was the Soviet undertaking designed by General Polkovnik Andrei I. Eremenko’s 2nd Baltic Front to trap and destroy the German forc... Read More

'RG' was a British naval operation to lay a defensive minefield in the approaches to the estuary of the Thames river (18/19 November 1939)., The operation was undertaken by th... Read More

'Rhein' (ii) was the German programme to increase the manufacture of heavy artillery ammunition, the need for which had been emphasised in the attritional fighting on the East... Read More

'Rhein' (iii) was a German naval minelaying operation in the English Channel by the torpedo boats of Korvettenkapitän Hans Wilcke’s 3rd Torpedoboots-Flottille (20/22 July 1... Read More

'Rhein' (iv) was a U-boat wolfpack operation in the Atlantic against the HX.237 convoy (7/10 May 1943). , Formed from the U-boats of the 'Amsel I' and 'Amsel II' packs, this w... Read More

'Rheingold' was a German programme for the creation of six new divisions (15 December 1941/January 1942)., Undertaken in association with 'Walküre' (i) to create 500,000 repl... Read More

'Rheinschiff' was a German attempt to use commercial vessels operating on the Rhine river for the clandestine transport of troops down the river for a coup-de-main attack on t... Read More

'Rheinübung' was the German naval commerce-raiding foray into the North Atlantic by the battleship Bismarck, accompanied by the heavy cruiser Prinz Eugen, and leading to the... Read More

'Rhombus' was the Allied programme of meteorological reconnaissance flights over the North Sea (1939/May 1945). ... Read More

'Rhubarb' (i) was the British overall designation for any short-range fighter-bomber sweep over part of German-occupied Europe and later over Germany (20 December 1940/May 194... Read More

'Rhubarb' (ii) was a British programme of air attacks against the Japanese lines of communication in Japanese-occupied Burma (1944/August 1945). ... Read More

This was the US plan for the transfer of logistic facilities from the UK to France after the implementation of ‘Overlord’ (summer 1944)., The move opened the way for matéri... Read More

'Ri' was the Japanese seizure of Buna and Gona as beach-heads on the north-east coast of Papua as the starting points for an overland offensive along the Kokoda Trail (otherwi... Read More

'Richard' (ii) was a German and Croat operation against mutinous and dissident Croat forces in the Razboj area of the puppet state of Croatia in Axis-occupied Yugoslavia (6/7 ... Read More