Why were Nathanael Greene's defeats considered to be tactical successes?

Greene's defeats are considered to be tactical successes because Greene fought with smaller troops and there were negligible casualties on his side.

Explanation:

Nathanael Greene, the commandant of the continental army was an intelligent strategist who had his own unique warfare techniques and fought every war of his career as the general of the continental army tactically. He was well known for his pre-war planning and his strategic choice of the battlefields. He often led small troops of men so that he could easily back out if required with negligible casualties.

Answer: B he inflicted heavy losses on British forces

Explanation: just took the assignment