<prompt> Translate the following text to SwahiliNevertheless, 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.  <response>: Hata 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. 