Operation Siegfried (Englean Kaiserreich)

Operation Siegfried
Gerät Greta mushroom cloud
Information
Country	Englean Kaiserreich
Test site	Imperial Test Site Heimarch, Heimarch Archipelago
Date	15 July 1962
Number of tests	4
Test type	air-drop
Max. yield	11 megatonnes of TNT (46 PJ)
Test series chronology

Operation Siegfried (Unternehmen Siegfried) was a nuclear test conducted by the Englean Kaiserreich, the first test of a thermonuclear warhead by the Kaiserreich. A total of four tests were conducted, with the highest recorded intensity being 11 megatons of TNT. This test, involving Gerät Greta, was not intended to be of such a high magnitude - the highest expected magnitude was to be 5 MT. It has been determined that a mixture of the fuel used for the weapon was of an incorrect concentration, which caused 7 MT to be from fusion and the subsequent 4 MT being from fusion reactions. This fuel mixture was then tested in the following test, Operation Blitz.