Confidence to protect US mainland from invasion? Confidence to protect American interests in the Middle East? Confidence to deter Russian and Chinese aggression

Confidence to protect US mainland from invasion? Confidence to protect American interests in the Middle East? Confidence to deter Russian and Chinese aggression? Confidence to protect international shipping routes? Confidence not to start a coup? Confidence to start a coup if it's necessary for moral reasons? Confidence to employ lots of Americans? Confidence to practice inclusivity and not have any major scandals about mistreatment of recruits? Confidence to spend budget wisely? WTF is confidence in the US Military supposed to mean, and how is it a useful metric?