終戦記念日はAniversary of end of war
War部分は World War II（ワールド・ワー・トゥー）と言い換えることが多いですね。
Japan marks 71 years since end of WWII
People in Japan are offering prayers for the more than 3 million war-dead on the day the country marks 71 years since the end of World War Two.
The government held a memorial service in Tokyo on Monday. About 6,000 people attended, including bereaved families.
Prime Minister Shinzo Abe said people in Japan will never forget that today’s peace and prosperity was built on the sacrifices of the fallen.
He pledged to humbly face history, contribute to global peace and prosperity, and strive to create a society that enriches everyone’s lives.
Participants observed a minute of silence at the stroke of noon.
The Emperor expressed a profound sense of remorse over the war and said he hoped that the devastation of war will never be repeated.
He offered condolences to those who died in the war and prayed for world peace and further progress of the country.
Nearly 80 percent of the bereaved family members who attended the ceremony are 71 or older.