Question: In which war was George Fleps found guilty of War crimes?

Context paragraphs:
Georg Fleps: Georg Fleps (* b. 1922 in Romania) was a Sturmmann and assistant gunner to Hans Siptrott, serving in the Waffen-SS under Joachim Peiper.  He was found guilty of War Crimes in the Malmedy Massacre during the Battle of the Bulge and sentenced to death on 20 March 1948.  The sentence was commuted to 20 years in August 1951.

Joachim Peiper: Joachim Peiper (30 January 1915 – 14 July 1976), also known as Jochen Peiper, was a field officer in the Waffen-SS during World War II and personal adjutant to "Reichsführer-SS" Heinrich Himmler between November 1940 and August 1941.

Trial of Radovan Karadžić: The Prosecutor v. Radovan Karadžić was a case before the International Criminal Tribunal for the former Yugoslavia in The Hague, Netherlands, concerning crimes allegedly committed during the Bosnian War by Radovan Karadžić, the former President of Republika Srpska.  On 24 March 2016 he was found guilty of 10 of 11 counts of crime including war crimes, genocide and crimes against humanity, and sentenced to 40 years imprisonment.

Borkum Island war crimes trial: The Borkum Island war crimes trial involved the prosecution of ten German soldiers and five German civilians accused and found guilty of war crimes committed on the island of Borkum against seven American airmen during World War II.  The airmen had been deliberately exposed to harassment and subsequently executed.

Ali Ahsan Mohammad Mojaheed: Ali Ahsan Mohammad Mojaheed (Bengali: আলী আহসান মোহাম্মদ মোজাহিদ ; 23 June 1948 – 22 November 2015) was a convicted war criminal and former Bangladeshi politician who served as a Member of Parliament and as the Minister of Social Welfare from 2001 to 2007 of Bangladesh.  He received death penalty by the International Crimes Tribunal of Bangladesh on 22 November 2015, becoming one of the world's first Ministers to be hanged.  It is believed that he was second in command of the infamous paramilitary force, Al-Badr in 1971, which allegedly committed war crimes at that time.  Until his death, he was the Secretary General of Bangladesh Jamaat-e-Islami.  On 17 July 2013, Ali Ahsan Mohammad Mujaheed was found guilty of war crimes such as genocide, conspiracy in helping to kill intellectuals and abduction during the 1971 Liberation war of Bangladesh by the International Crimes Tribunal-2 and sentenced him to death for 2 of the 7 charges brought against him.  High Court rejected his review petition on 18 November 2015.  According to the jail officials, Mojaheed asked for mercy petition to the President of Bangladesh, which was rejected, however his family reported that the news of appeal was a false from the government.

The Wehrmacht War Crimes Bureau, 1939-1945: The Wehrmacht War Crimes Bureau, 1939-1945 is a book by Alfred-Maurice de Zayas.  It was published in November 1979 in Germany by Universitas/Langen Müller under the title "Die Wehrmacht-Untersuchungsstelle", and in America in 1989 under the title "The Wehrmacht War Crimes Bureau, 1939-1945" (University of Nebraska Press).  Professor Howard S. Levie, an expert in international humanitarian law, provided the preface for the American version.  The book describes some of the work of the Wehrmacht War Crimes Bureau, a special section of the legal department of the Wehrmacht High Command, which collected reports of alleged Allied and German war crimes for purposes of diplomatic protests, war crimes trials, and white books.

Court-martial: A court-martial (plural courts-martial, as "martial" is postpositive) is a military court.  A court-martial is empowered to determine the guilt of members of the armed forces subject to military law, and, if the defendant is found guilty, to decide upon punishment.  In addition, courts-martial may be used to try prisoners of war for war crimes.  The Geneva Convention requires that POWs who are on trial for war crimes be subject to the same procedures as would be the holding military's own forces.

Battle casualties of World War II: The article summarizes casualties in different theatres of World War II in Europe and North Africa.  Only the military losses and civilian losses directly associated with hostilities are included into the article.  The actions of the Axis' and Allied military or civilian authorities that fit the definition of genocide, or war crimes (including Nazi war crimes, Soviet war crimes, Allied war crimes, Holocaust, Nazi crimes against Soviet POWs "et caetera") are left beyond the scope of the present article.

Scorpions (paramilitary): The Scorpions () was a Serbian paramilitary unit active during the Yugoslav Wars.  The unit was involved in war crimes during the wars in Croatia, Bosnia and Herzegovina and Kosovo.  After the wars, four members of the unit were found guilty of killing six prisoners during the Srebrenica massacre of July 1995 and five were found guilty of killing fourteen civilians, mostly women and children, during the Podujevo massacre in March 1999.

Nicola Bellomo: Nicola Bellomo (Bari, Apulia, Italy, 2 February 1881 – Island of Nisida, Naples, Italy, 11 September 1945) was a general in the Italian Army during World War II.  He was tried for war crimes at a courts-martial for the murder of a British prisoner of war.  He was found guilty.  He was one of the few Italian commissioned officers prosecuted for war crimes during World War II, and the only one to be executed by a British-controlled court.

Supporting paragraphs: Georg Fleps Joachim Peiper
Answer: World War II