“I am saying that the so-called Nanking Massacre by Japanese troops had never occurred,” Mr. Scott-Stokes said in the video. “I am very insistent on this. I am not willing to be called a liar by anybody on this subject. I have pledged my existence on this.”

He described what happened in 1937 in the Chinese city as “sporadic violence here and there” that should be referred to as “incidents” rather than as a “massacre.”