To read the full story, click on this link to an excellent article at the Australian War Memorial.
The Siege of Tobruk lasted for 242 days in 1941 from April until December.
IWM caption : Australian troops
occupy a front line position at
Tobruk. Between April
and December 1941 the Tobruk
garrison, comprising British,
Australian and Polish troops,
was besieged by Rommel's
forces. It fell to the Germans
after the battle of Gazala on 21
June 1942 but was recaptured
five months later
Australian War Memorial Article - The Great Siege