The nation set to choose female prime minister in landmark first
Over the last two decades, Japan has seen more than 10 leaders.
In fact, one expert likens assuming the nation's top job to taking a "poisoned chalice".
However, what is the reason does Japan keep changing prime ministers? It's due in part of it being a "one-party democracy", explains Prof James Brown of Temple University Japan.
The Liberal Democratic Party's control on the country's politics means the primary rivalry originates inside the party, rather than from opposition groups.
"Therefore inside the LDP there are intense conflicts within various groups - they all want their own faction to get the leadership position."
"So even though you might be chosen as leader, the moment you're in office, you have many individuals scheming to try to remove you again."
Main Reasons Behind Frequent Changes
- One-party dominance restricts external competition
- Internal factional rivalries drive leadership contests
- The leadership role is often described as a "poisoned chalice"
- Political stability remains difficult to achieve despite financial power
