The Proclamation of Rebellion was issued by King George the III in response to news about the battle of bunker hill at the start of the American Revolution. The Americans lost the battle but they caused enourmous casualties to the British Army and proved that they were ready to fight if needed. Durring this time and after the battle the Continental Congress tried to send a peace agreement to the King saying they didn't want war but the Act of Rebellion was already given by the time it arrived and was later refused by the King. The Act was a proclomation brought before the Parlement by the king stating he wanted to use any force needed to end the rebellion using the army and if needed call on other allied countries to help in the efforts. This also included the use of a blockade around New York and a cese of trade with the colonies.This ended up being a cucial point in the war as it showed that King George would not try to resolve the conflict peacefuly pushing the colonists to stop trying to repair relations and to instead seek their own independence. Any British citicins found to be in corespondence or in favor of the colonies rebellion would be punished. This Act was a extremely critical peice of legestlature in the history not just of Britain but of the world because it helped to start the American Revolution.