When the British government saw that these provisions of the treaty were not fulfilled, it retaliated by refusing to withdraw its troops from the northern and western frontier posts. The British army sailed from Charleston on the 14th of December, 1782, and from New York on the 25th of November, 1783, but in contravention of the treaty small garrisons remained at Ogdensburgh, Oswego, Niagara, Erie, Sandusky, Detroit, and Mackinaw until the 1st of June, 1796. Besides this, laws were passed which bore very severely upon American commerce, and the Americans found it impossible to retaliate because the different states would not agree upon any commercial policy in common. On the other hand, the states began making commercial war upon each other, with navigation laws and high tariffs. Such laws were passed by New York to interfere with the trade of Connecticut, and the merchants of the latter state began to hold meetings and pass resolutions forbidding all trade whatever with New York. The old quarrels about territory were kept up, and in 1784 the troubles in Wyoming and in the Green Mountains came to the very verge of civil war. People in Europe, hearing of such things, believed that the Union would soon fall to pieces and become the prey of foreign powers. It was disorder and calamity of this sort that such men as Hutchinson had feared, in case the control of Great Britain over the colonies should cease. George III. looked upon it all with satisfaction, and believed that before long the states would one after another become repentant and beg to be taken back into the British empire. [Sidenote: The craze for paper money and the Shays rebellion, 1786.] The troubles reached their climax in 1786. Because there seemed to be no other way of getting money, the different states began to issue their promissory notes, and then tried to compel people by law to receive such notes as money. There was a strong "paper money" party in all the states except Connecticut and Delaware. The most serious trouble was in Rhode Island and Massachusetts. In both states the farmers had been much impoverished by the war. Many farms were mortgaged, and now and then one was sold to satisfy creditors. The farmers accordingly clamoured for paper money, but the merchants in towns like Boston or Providence, understanding more about commerce, were opposed to any such miserable makeshifts. In Rhode Island the farmers prevailed. Paper money was issued, and harsh laws were passed against all who should refuse to take it at its face value. The merchants refused, and in the towns nearly all business was stopped during the summer of 1786.