Final answer:
George Washington wanted to defend the union against an attack on the federal government by calling up 12,000 troops in the first days of September.
Step-by-step explanation:
In the first days of September, George Washington wanted to defend the union against an attack on the federal government. Militia units had gathered and threatened to trample upon both the military and civil government with impunity. Washington issued a proclamation on August 7 suggesting that he would call out the militia to enforce the law, and when peaceful negotiations failed, he called up 12,000 troops under his command. On September 25, these troops set out for Pittsburgh to suppress the resistance movement. By the time they arrived in October, the opposition had collapsed and the crisis ended.