nine nuclear explosions were initiated Process_start , culminating in the united kingdom becoming Becoming the third recognised possessor of thermonuclear weapons , and the restoration of the nuclear special relationship with the united states with the 1958 us-uk mutual defence Defending agreement .

It forced Causation the nominal possessor of Greater Poland , the Prussian-Brandenburg Elector , to reroute Motion a sizable Prussian division under Derflinger , also marching Self_motion towards Kalisz , to withdraw Escaping north to Toruń , after leaving commands at Poznań and Miedzyrzecz .