What might some problems/challenges have been for the Allied Powers in waging a two
front, global war?

Supply chains

Explanation:

The allies mostly America sent tons of ships to Britain, but these ships were hunted by German U-boats, so teh american just decided to send 100s of weak ships instead of 10 strong ones and a destroyer escort

herodotus taught this. herodotus was an ancient greek historian who was born in halicarnassus in the persian empire. he is known for having written the book the histories, a detailed record of his "inquiry" on the origins of the greco-persian wars.

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.