The commander of the continental army was General George Washington. The continental army was formed in the outbreak of the American Revolutionary War, followed shortly after by independence from Great Britain.
"There was no organization called the US Continental Army because the United States hadn't been formed when the Continental Army was assembled." Optionally: "George Washington was a General in the Continental Army."
General George Washington was the first Commander-in-Chief of the Continental Army. The Continental Army was formed after the outbreak of the American Revolutionary War by the colonies that became the United States of America.