This operation was conducted by Captain Józef Zabielski, Major Stanisław Krzymowski and political courier Czesław Raczkowski.

A further nine were executed after the war by the Polish People's Republic; the communist regime was hostile to the Cichociemni, considered to be British ideologised infiltrators.

"[4] The Silent Unseen were trained initially in Scotland in preparation for missions for the Polish underground in occupied Poland, such as building-clearance and bridge-demolition.

Górski proposed creating a secret unit to maintain contact with the underground ZWZ, using a group of well-trained envoys.

They studied documents on German paratroops and drafted a plan to create in exile a Polish airborne force to be used in covert support operations.

Section III's purpose was contingency planning for covert operations in Poland, air delivery of arms and supplies, and training of paratroops.

The training established by the General Staff's Section VI (Oddział VI Sztabu Naczelnego Wodza) and the British Special Operations Executive (SOE) comprised five courses: During the first phase of training, all the volunteers were taught to use every kind of weapon (British, Polish, German, Russian and Italian weapons) and mines.

In addition, agents delivered the following sums of money to the Home Army: Through 27 December 1944, 316 soldiers and 28 emissaries successfully parachuted into Poland.

An unknown number of Poles (including the best known, Krystyna Skarbek) were also parachuted into France by the British Special Operations Executive to start an underground movement among the half-million-strong Polish minority.

The Polish section of SOE was the only one which freely chose its own men and operated its own radio communications with an occupied country.

Many became important staff officers of the Polish Secret Army and took part in Operation Tempest and uprisings in Wilno, Lwów and Warsaw.

Some 37 worked in intelligence, 50 were radio operators and emissaries, 24 were staff officers, 22 were airmen and airdrop coordinators, 11 were instructors of armored forces and instructors in anti-tank warfare at secret military schools, 3 were trained in forging documents, 169 were trained in covert operations and partisan warfare, and 28 were emissaries of the Polish government.

The Polish edition, Drogi cichociemnych: opowiadania zebrane i opracowane przez koło spadochroniarzy Armii Krajowej, was published by Veritas; and an English edition, The Unseen and Silent: Adventures from the Underground Movement, Narrated by Paratroops of the Polish Home Army, was published by Sheed and Ward.