Short answers, pulled from the story.
The Bataan Death March was the forced transfer of approximately 72,000 to 78,000 Filipino and American prisoners of war by the Imperial Japanese Army in April 1942. Prisoners were marched more than 100 kilometers from the Bataan Peninsula to Camp O'Donnell in the Philippines. The march was characterized by severe physical abuse, torture, and mass killings, and was later judged a Japanese war crime.
Death toll estimates vary by source. Stanley L. Falk calculated 600 to 650 American deaths and 5,000 to 10,000 Filipino deaths during the march itself. Other sources report Filipino deaths as high as 18,000. Of an estimated 80,000 who began the march, only 54,000 reached Camp O'Donnell, and survivors continued dying there at rates of up to several hundred per day.
Colonel Masanobu Tsuji ordered the summary execution of approximately 350 to 400 Filipino officers at the Pantingan River and issued clandestine orders to execute American captives. General Masaharu Homma, as overall commander, was convicted of permitting his subordinates to commit atrocities. Tsuji, who directly ordered the killings, evaded prosecution, disappeared in Laos in April 1961, and was declared dead seven years later.
Masaharu Homma was arrested by Allied troops in September 1945 and indicted on 43 counts of war crimes. He was sentenced to death on the 26th of February 1946 and executed by firing squad outside Manila on the 3rd of April 1946. His defense claimed he did not learn of the death toll until two months after the march ended.
The U.S. government did not inform the American public about the march until the 27th of January 1944, more than two years after it occurred. The government released sworn statements from military officers who had escaped, and their accounts were featured in Life magazine shortly after.
Many of the American soldiers at Bataan came from New Mexico's 200th and 515th Coast Artillery units of the National Guard, which together numbered 1,816 men, of whom 829 died. The old state capitol building was renamed the Bataan Memorial Building, and every spring the Bataan Memorial Death March is held at White Sands Missile Range over a 26.2-mile course. On the 19th of March 2017, more than 6,300 participants attended the 28th annual event, setting an attendance record.