What originally limited the effectiveness of the united states

The effectiveness of the United States:

The United States Nation is more successful in forestalling wars than numerous specialists might suspect. The United Nations was established in 1945 so as to forestall struggle and to keep up world harmony. The U.N. has a large group of different activities. It attempts to assist nations with diminishing appetite, sickness, and lack of education. It advances supportable improvement and the earth.  

if you could provide the poem below, i'd be happy to you!

explanation:

you didn't give us the poem, or the title of the poem. but it is essential for you to give us that, otherwise we can not detect when the poem has a tonal shift!

"germany's geographic location was an advantage when it was on the offensive in the war because it was situated next to an extremely wide river, the rhine, which was difficult for the allies to cross."