Indeed. Although I'd argue they've inherited it from the Brits. When was the last time Britain was actually invaded or attempted to? XIX century under Napoleon? Yet there's a whole literature genre about it.
Also like quarter of sci-fi, especially military sci-fi is about USA being invaded. Apparently even aliens think "America bad" is pretty good reason to come all that way.
Indeed. Although I'd argue they've inherited it from the Brits. When was the last time Britain was actually invaded or attempted to? XIX century under Napoleon? Yet there's a whole literature genre about it.
Also like quarter of sci-fi, especially military sci-fi is about USA being invaded. Apparently even aliens think "America bad" is pretty good reason to come all that way.