LVIV, Ukraine (AP) — Ukrainian President Volodymyr Zelenskyy accused the West of lacking courage as his country fights to stave off Russia’s invasion, making an exasperated plea for fighter jets and tanks to sustain a defense in a conflict that has ground into a war of attrition. Speaking after U.S. President Joe Biden said in a lacerating speech that Russian President Vladimir Putin could not stay in power — words the White House immediately sought to downplay — Zelenskyy lashed out at the West’s “ping-pong about who and how should hand over jets” and other weapons while Russian missile attacks kill and trap civilians.