<prompt> tafsiri zifuatazo kutoka kwa swahili hadi kiingereza.katika waraka wake kwa umoja wa mataifa, marekani ilijitetea kuwa ilimuua jenerali wa jeshi la iran qasem soleimani kama hatua ya kujilinda.  <response>: in a letter to the united nation, the united states justified the killing of general qasem soleimani as an act of self-defense. 