Final answer:
Under the Articles of Confederation, only one branch of government was formed, which was the legislative branch. There were no separate executive and judicial branches as established later in the Constitution.
Step-by-step explanation:
Under the Articles of Confederation (AOC), the precursor to the United States Constitution, only one branch of government was formed - the legislative branch. In contrast to the current government structure defined by the Constitution, which entails the separation of powers among three branches (legislative, executive, and judicial), the AOC did not establish separate executive and judicial branches. The lack of these branches was one of the reasons the Articles were considered weak and ultimately led to the drafting and ratification of the Constitution, which created a system of checks and balances between the legislative, executive, and judiciary.