Final answer:
Baron Johann de Kalb was the German-born officer killed at the Battle of Camden during the American Revolution, where he served as a major general in the Continental Army.
Step-by-step explanation:
The German-born officer who was killed at the Battle of Camden was Baron Johann de Kalb. An experienced soldier, de Kalb served in the French army during the Seven Years' War before volunteering for duty in the American Revolution. He was highly respected for his military prowess, and he became a major general in the Continental Army.
At the Battle of Camden in 1780, de Kalb commanded a division of Maryland and Delaware troops. Despite a valiant fight and enduring several severe wounds, de Kalb was ultimately captured and later died as a result of his injuries. His legacy lives on as that of a figure who fought for American independence and paid the ultimate price on the battlefield.