Japan set to choose female prime minister in landmark first
Over the last two decades, the country has seen more than 10 leaders.
In fact, one expert compares taking up the country's top job to drinking from a "poisoned chalice".
But why does Japan frequently replace prime ministers? This is partly because of it being a "single-party system", explains Prof James Brown of Temple University Japan.
The Liberal Democratic Party's control on the country's politics means the main political competition originates within the party, instead of from external parties.
"Therefore inside the LDP there are vicious struggles within various groups - they all want their own clique to get the leadership position."
"Thus although you might be selected as leader, as soon as you're in power, you have many individuals manoeuvring to try to get you out again."
Main Reasons Behind Frequent Changes
- One-party dominance restricts outside challenges
- Party infighting drive leadership contests
- The leadership role is often described as a "cursed position"
- Government continuity remains difficult to achieve despite economic strength
