While some celebrated the fact that a rising had happened at all, believing in Pearse's theory of "blood sacrifice" (namely that the deaths of the Rising's leaders would inspire others), Collins railed against the military blunders made, such as the seizure of indefensible and very vulnerable positions like St Stephen's Green, which were impossible to escape from and difficult to supply. Public outcry placed pressure on the British government to end the internment. In December 1916, the Frongoch prisoners were sent home.