Japan set to choose female prime minister in historic first
Over the last two decades, the country has seen more than 10 prime ministers.
In fact, a specialist likens assuming the nation's highest office to drinking from a "cursed cup".
But why does Japan keep changing leaders? This is partly because of it being a "single-party system", explains Prof James Brown of Temple University Japan.
The LDP's grip on the country's politics means the main political competition comes from inside the party, rather than from external parties.
"So within the LDP there are vicious struggles within different factions - they all want their own faction to secure the leadership position."
"So even though you might be selected as leader, the moment you're in power, you have many individuals scheming to try to remove you again."
Main Reasons Behind Frequent Changes
- Single-party rule limits external competition
- Party infighting drive power struggles
- The prime minister's position is frequently called a "poisoned chalice"
- Political stability stays elusive despite financial power
