SINGAPORE -- When 72-year-old Lee Hsien Loong steps down as Singapore's prime minister on Wednesday night after 20 years in office, it will mark the end of an era for the country.

Lawrence Wong, left, will succeed Lee Hsien Loong as Singapore's prime minister on May 15. (Nikkei montage/Source photos by AP and Tomoki Mera)
Incoming leader expected to 'refresh' job support, 'listen' to diverse voices