By Tamiyuki Kihara, Tim Kelly and John Geddie
TOKYO, March 18 (Reuters) – Japanese Prime Minister Sanae Takaichi visits the White House on Thursday for meetings that offer U.S. President Donald Trump a chance to lean on a key security partner for support in his Iran war, threatening to strain a decades-old alliance.
Takaichi is the first major ally set for face-to-face talks with Trump since he demanded that Japan, among a coalition of nations, send ships to escort tankers through the Strait of Hormuz waterway, largely closed by Iran in the conflict.


