Operation Nicety was an operation in September 1942 during the Second World War by the Sudan Defence Force

Sudan Defence Force

The Sudan Defence Force was a Sudanese military unit formed in 1925, as its name indicates, to maintain the borders of the Sudan under the British administration...

. It was designed to support the raiding forces taking part in Operation Agreement

Operation Agreement

Operation Agreement consisted of a series of ground and amphibious operations carried out by British, Rhodesian and New Zealand forces on German and Italian-held Tobruk on 13 September 1942, during the Second World War. A Special Interrogation Group, fluent in German, also took part in missions...

, Operation Caravan

Operation Caravan

Operation Caravan was a subsidiary of Operation Agreement under which four simultaneous raids were carried out against important Axis Lines of Communication positions....

 and Operation Brevity

Operation Brevity

Operation Brevity was a limited offensive conducted in mid-May 1941, during the Western Desert Campaign of the Second World War. Conceived by the commander-in-chief of the British Middle East Command, General Archibald Wavell, Brevity was intended to be a rapid blow against weak Axis front-line...

. The objective of the operation was the seizure of the Jalo oasis

Jalo oasis

Jalo Oasis is an oasis in Cyrenaica, Libya, located west of the Great Sand Sea and about 250 km south-east of the Gulf of Sirte. Quite large, long and up to wide, it supports a number of settlements, the largest of which is the town of Jalu...

 in the Libyan desert

Libyan Desert

The Libyan Desert covers an area of approximately 1,100,000 km2, it extends approximately 1100 km from east to west, and 1,000 km from north to south, in about the shape of a rectangle...

, to support the withdrawal of the forces involved in the other operations. The operation was a failure: the Germans had discovered the plans for all four operations on the body of a dead officer taking part in Operation Agreement. Forewarned, the garrison at Jalo had been warned and reinforced which easily repelled the attack on the night 15–16 September.