Are most economics purely capitalism, purely command, purely traditional, or mixed?

I would say there is a large mix, it all depends on the government type, country, populace, and geography.

a big wall across the mexican border so no drugs, terrorist, or illegal immigrants can come through : )    

after defeating german forces in north africa allied leaders turned their attention to "italy," since this was the location that made the most geographic sense before invading northern europe via france.