It didn't always be just "Uncle Sam" defending America, the kickass Lady Liberty also used to do her share. But then uncle sam must have killed her or locked her in a room, because we haven't seen much of her these days.
自由女神和劍
america、defending、Freedom、lady、lady liberty、propaganda、sword、Women
美國、衛冕、自由、淑女、自由女神、宣傳、劍、women
資料來源：openclipart ( https://openclipart.org/ )