What supply problems did the allies face in europe during world war ii? road and rail routes had been destroyed by the war, so it was hard to transport supplies to their troops. supplies had to travel a long way overland through harsh weather, so they often did not reach the troops that needed them. most supplies were manufactured in the united states, so sabotage by antiwar groups there was common. supplies had to travel a long distance across water on ships that were often attacked, so they did not reach europe.

Supplies had to travel a long distance across water on ships that were often attacked, so they did not reach Europe.

Explanation:

alliances in ww1 were different from ww2 because the entente in ww1 made up of serbia,russia,france,britan,japan and italy later america  and all allied in a sort of balance of power and too keep germany,austria-hungary,and the ottomans down. russia allied the serbians in order to exert its influence in the balkans while france allied the russians because france was still in dismay and insulted after the defeat to the germans during the unification of germany and britian allied the belgians after the germans invasion of belgium.in ww2 the alliances were in a preemptive attempt to deter any further wars into happening while germany and italy allied since they were insulted and humiliated after the previous war while also sharing a similar ideology of facsim along with japan which all 3 had a want for world domination and agreed to assist one another in the endevours 

explanation:

a countries leader should be motivated by the common good of the country.