Japan set to elect female prime minister in landmark first
Over the last two decades, Japan has seen more than 10 prime ministers.
In fact, one expert compares taking up the country's top job to taking a "poisoned chalice".
However, what is the reason does the country keep changing leaders? It's due in part of it being a "single-party system", says Prof James Brown of Temple University Japan.
The Liberal Democratic Party's control on the country's politics means the primary rivalry comes from within the party, instead of from opposition groups.
"Therefore inside the LDP there are vicious struggles within different factions - they all want their own clique to secure the leadership position."
"So even though you might be selected as prime minister, as soon as you're in power, you have many individuals scheming to try to remove you again."
Key Factors Behind Rapid Turnover
- One-party dominance limits external competition
- Party infighting drive leadership contests
- The leadership role is frequently called a "poisoned chalice"
- Government continuity stays difficult to achieve despite financial power
