[4] In 1775 upon learning that his regiment would be imminently deployed to North America he wrote to the Secretary of State for War Lord Barrington to resign his commission.[5] Giving his reasoning in his letter to Barrington, Effingham stated; "As I cannot, without reproach from my conscience, consent to bear arms against my fellow subjects in America in what, to my weak discernment, is not a clear cause.The Earl disliked both sides: the British Government for its coercive policies and implementation of taxation, and the colonists for engaging in armed rebellion.In spite of his public resignation and denunciation of the government, Effingham was permitted to return to the army at the time of the threatened invasion and was promoted to lieutenant-colonel in 1782.[8] In 1785, a London newspaper reported that he was being considered for the role of minister to the United States, to reciprocate John Adams coming to Great Britain to serve as Ambassador.