Answer:
It became a military superpower in the world but lacked a strong economy
Explanation:
The entry of the US in WWI and WII ended the isolationism preceding the 20th century.
With the US being involved in European affairs, it became a superpower replacing UK role in the global affairs and a later interventionist policy would turn to contest with the Socialist world led by the USSR.
The domestic politics resented, since the first years of the 1900s suffered from a Recession crisis, making conditions within the US domestic context controversial-
Today, the US role in the world of spending in wars overseas was not always national interest and has turned many times a strain on civil society.
