european unifaction is a complicated devolpment what are some possible postivites for member nations?

answer; taking up arms to defend the nation;

most people now work in jobs where they do one  kind  of work; they are carpenters, bankers, cooks, mechanics, and so forth. likewise, most  businesses produce  only certainkinds  of  goods  or  services, such as cars, tacos, or gardening  services. this feature of  production  is known as specialization.

very positive impact on our industries in the west, sine they promoted settlement and increased the ways in which goods could be transported to market.