Japanese Emperor Akihito will end his three-decade reign this week when he abdicates on Tuesday.
His son Crown Prince Naruhito will become emperor on Wednesday.
Akihito has cited concerns about his age and declining health and is the first Japanese emperor to abdicate in 200 years.
James Lindsay from the Council on Foreign Relations says it's a huge transitional moment for the Japanese people.

Explosion at mosque in Pakistan's capital kills 31
Hong Kong media tycoon Jimmy Lai to be sentenced on February 9
More storms coming as Leonardo swells rivers in Spain and Portugal
Danone recalls more infant formula in Europe
UN chief calls New START treaty expiration 'grave moment'