<prompt> Translate the following text to EnglishHata hivyo, maafisa wa Marekani wanasema helikopta na wanajeshi wa jeshi ni upanuzi wa operesheni ya angani, kuunga mkono kampeni ya angani, na si nguvu za ardhini.  <response>: Nevertheless, U.S. officials assert that the helicopters and Army soldiers are an expansion of the air operation, supporting the air campaign, and not a ground force. 