Emperor Emeritus Akihito, the father of Emperor Naruhito, turned 92 on Tuesday.

The former Emperor was diagnosed this May with silent myocardial ischemia, a condition in which blood flow to the heart muscles falls below sufficient levels, and began taking new medication in July. He has maintained a relatively stable condition since then, according to an aide.

With this year marking the 80th anniversary of the end of World War II, Emperor Emeritus Akihito reflected on the war, including remembering his evacuation to the countryside during the war and his meeting with second-generation Japanese in the Philippines during his 2016 visit to the country.