Hi,
I googled 'When two elephants fight' + Swahili, and got 84 hits, including this comment from
www.project-syndicate.org/ article_print_text?mid=1168&lang
Because the thousand-year-old city of Mombasa historically had a superb natural harbor, it was fought over many times--by Arabs, the Portuguese, Zanzibaris, the Mazrui, the British, and others. There was a time when it was called "Mvita," the Isle of War. Even now, the Swahili dialect of Mombasa is called Ki-mvita, and its people coined the proverb "Ndovu wawili wakipigana, ziumiazo na nyasi" [When two elephants fight, it is the grass that suffers].
Best wishes, Clive