General Washington therefore issued a counter-proclamation, commanding all persons who had received the enemy's protection to repair to head-quarters, or to some general officer of the army, and to surrender their protections and take an oath of allegiance to the United States;--allowing thirty days for those who preferred to remain under the protection of Great Britain to withdraw within the enemy's lines. This was considered in some quarters as an undue exercise of power. The idea of an oath of allegiance to the United States, before the Confederation was formed, was regarded by many as an absurdity. Allegiance, it was said, was due exclusively to the State of which a man was an inhabitant; the States alone were sovereign; and it was for each State, not for the United States, which possessed no sovereignty, to exact this obligation. The Legislature of New Jersey were disposed to treat General Washington's proclamation as an encroachment on their prerogatives: and one of the delegates of that State in Congress denounced it as improper.[128] This feeling was shared by other members; but it is not to be doubted, that the proceeding was a legitimate exercise of the authority vested in the Commander-in-chief. He had been expressly empowered to arrest and confine persons disaffected to the American cause; and the requiring them to attend at his head-quarters was clearly within the scope of this authority. Moreover, although no confederation or political union of the States had been formed under a written compact, yet the United States were waging war, as a government regularly constituted by its representatives in a congress, for the very purpose of carrying on such war. They had an army in the field, whose officers held continental commissions, and were paid by a continental currency. They were exercising certain of the attributes of sovereignty as a belligerent power; and in that capacity they had a complete right to exact such an obligation not to aid the enemy, as would separate their friends from their foes. It was a military measure; and the tenor of the proclamation shows that General Washington exacted the oath in that relation. To pause at such a moment, and to consider nicely how much sovereignty resided in each of the States, and how much or how little belonged to the United States, was certainly a great refinement. But it marks the temper of the times, and the extreme jealousy with which all continental power and authority were watched at that period.[129]