Final answer:
The American army's invincibility can be attributed to superior weapons, superior troops, experienced generals and military leaders, and the importance of fighting for independence.
Step-by-step explanation:
The American army's invincibility can be attributed to a combination of several factors:
- Superior weapons: The American army has access to advanced and powerful weaponry that gives them an edge in battles.
- Superior troops: American soldiers are well-trained, disciplined, and highly skilled, making them formidable opponents on the battlefield.
- Experienced generals and military leaders: American military leadership has a wealth of experience and tactical knowledge that enhances the effectiveness of their strategies.
In addition to these factors, the American army's drive to fight for independence and their determination to protect their nation also contribute to their invincibility.