By Patricia Zengerle and Rose Horowitch WASHINGTON (Reuters) – Ukrainian first lady Olena Zelenska appealed to U.S. lawmakers on Tuesday to provide more help to her country as it struggles against a five-month-long Russian invasion, saying weapons could help assure a “joint great victory.” “We remain completely broken when our world is destroyed by war. Tens of thousands of such worlds have been destroyed in Ukraine,” she said through a translator, in an emotional 15-minute speech to members of the U.S. House of Representatives and Senate. Zelenska, the wife of Ukrainian President Volodymyr Ze…