charles x gustav then granted Giving frederick william full sovereignty in the duchy of prussia in return for military aid Assistance , and in the treaty of unk allied Collaboration himself with the transylvanian george ii UNK who invaded Attack unk from the southeast .

although anglo-french skirmishes over their american colonies had begun Process_start with what became Becoming the french and indian war in 1754 , the large-scale conflict Hostile_encounter that drew Motion in most of the european powers was centered Placing on austria 's desire to recover silesia from prussia .

faced with this sudden turn of events , britain aligned Cause_to_amalgamate itself with prussia , in a series of political manoeuvres known as the diplomatic revolution Change_of_leadership .