<prompt> Translate the following text to SwahiliThey trotted out numerous theories to establish the Kosovo missions Air power alone had never won a war, the Serbs had proven their invincibility against Hitler, and negotiation backed by gradual military escalation had failed in Vietnam.  <response>: Walitoa nadharia nyingi za kuanzisha Kosovo Missions Air Power Alone ambayo haijawahi kushinda vita, Serbs ambayo imethibitisha kutoshindwa dhidi ya Hitler, na Mazungumzo yaliyoungwa mkono na kuongezeka kwa hatua kwa hatua ya kijeshi ambayo yameshindwa katika vita vya Vietnam. 