TOKYO -- On Saturday, Sanae Takaichi won a shock victory in the race to lead Japan's Liberal Democratic Party (LDP), echoing a surprise sprung 50 years ago in the U.K. by her political heroine, Margaret Thatcher.

Sanae Takaichi reacts as she receives applause from lawmakers after winning the race for the Liberal Democratic Party leadership in Tokyo, Japan, Oct. 4. A parliamentary vote expected to confirm her as prime minister is due later this month. (Photo by Shun Kato)
If confirmed as prime minister, LDP leader also set for hectic debut on diplomatic stage