<prompt> Translate the following text to EnglishIli kukabiliana na tishio la kikomunisti kutoka kwa Muungano wa Sovieti, Marekani ilianza haraka kazi ya kujenga upya uchumi kwa kubadilisha taasisi za Japani na kubuni katiba mpya ya amani.  <response>: To counter a perceived communist threat from the Soviet Union, the US quickly set to work reconstructing the economy by transforming Japans institutions and devising a new pacifist constitution. 