India, Oct. 5 -- Japan is on the verge of a historic leadership change, as Sanae Takaichi, a conservative heavyweight and former Minister of Economic Security, is set to become the country's first female Prime Minister.

Takaichi is expected to become the premier later this month in a parliamentary vote.

Her possible appointment follows her election as the president of the ruling Liberal Democratic Party (LDP). Her appointment marks a breakthrough in Japan's political landscape, which men have long dominated.

Takaichi, known for her nationalist stance and admiration for former British Prime Minister Margaret Thatcher, represents a right-wing shift for the LDP as it now seeks to attract younger voters, who are being drawn to smaller part...