Question: Which of Felix Steiner's comrades played a key role in achieving historical and legal rehabilitation of the Waffen-SS?

Context paragraphs:
Sarla Behn: Sarala Behn (born Catherine Mary Heilman; 5 April 19018 July 1982) was an English Gandhian social activist whose work in the Kumaon region of uttrakhand, India helped create awareness about the environmental destruction in the Himalayan forests of the state.  She played a key role in the evolution of the Chipko Movement and influenced a number of Gandhian environmentalists in India including Chandi Prasad Bhatt, Bimala behn and Sunderlal Bahuguna.  Along with Mirabehn, she is known as one of Mahatma Gandhi's two English daughters.  The two women's work in Garhwal and Kumaon, respectively, played a key role in bringing focus on issues of environmental degradation and conservation in independent India.

Felix Steiner: Felix Martin Julius Steiner (23 May 1896 – 12 May 1966) was an "Obergruppenführer" in the Waffen-SS during World War II, who commanded several SS divisions and corps.  He was awarded the Knight's Cross of the Iron Cross with Oak Leaves and Swords.  Together with Paul Hausser, he contributed significantly to the development and transformation of the Waffen-SS into a military force made up of volunteers and conscripts from both occupied and un-occupied lands.

2nd Naval Infantry Division (Wehrmacht): The 2nd Naval Infantry Division (German: "2.Marine-Infanterie-Division") was formed in March 1945 in the region of Schleswig-Holstein from Kriegsmarine personnel no longer required to crew ships or for shore establishments.  The division was deployed in defensive operations in north-west Germany and fought in actions against British forces at Rethem near Verden and Visselhovede.  While in withdrawal following operations in the region of Bremen it was defeated and captured by advancing British forces in its home region of Schleswig-Holstein in May 1945.  According to author Richard Jackson, it was planned to be part of SS General Felix Steiner's abortive counterattack to relieve Berlin in late April 1945, along with the 7th Panzer Division and 25th Panzergrenadier Division.

Army Detachment Steiner: Army Detachment Steiner ("Armeeabteilung Steiner") was a temporary military unit, something more than a corps but less than an army, created on paper by German dictator Adolf Hitler on 21 April 1945 during the Battle of Berlin, and placed under the command of SS-"Obergruppenführer" Felix Steiner.

Nayeem Ahmad Khan: Nayeem Ahmad Khan, Chairman Jammu Kashmir National Front and provincial president of All Parties Hurriyat Conference (APHC) was born in Pathanpora (Khore), Pattan District Baramulla 27 km from Srinagar .  He had his early schooling from his native village and then moved to for Civil Engineering.  Nayeem Khan is a born revolutionary, he played a pivotal role in organizing youth since his college days.  He was first arrested in 1982, Jailed, tortured due to his strong commitment for the resolution of issue.  During his political career, he founded Islamic Student's League along with Ishfaq Majeed Wani, Mohammad Yasin Malik, Javaid Ahmad Mir, Mahmood Ahmad Sagar, Syed Abdullah Sheerazi, Mohmammad Altaf Motto, Firdous Ahmad Shah et al. and spearheaded the strong youth movement in the 1980s and played a key role in the formation of Muslim United Front (MUF) he also led Jammu Kashmir People's League as its chairman in 90's.  He was closely associated with Late S Hameed and Sheikh Abdul Aziz.  After his release from Jail in 1993 Nayeem Khan played a key role in organizing and strengthening political platform of APHC.  Due to his unflinching commitment to joining Pakistan, his whole family suffered at the hands of Indian Authorities.  In 1947, when Indian forces landed to rescue Jammu and Kashmir from invading Pakistani tribals, Nayeem Khan's family had to face the wrath - all their houses, belonging were torched.  His father late Ghulam Mohammad Khan was a close associate of Late Mohammad Maqbool Bhat and founder member of Muslim Revolutionary Front (MRF), GM Khan was tortured and jailed in early 70's.  Nayeem Khan's younger brother Gull Mohammad Khan was martyred in 1997 and his maternal uncle Tariq Ahmad Lone was subjected to enforced disappearance in the early 1990s.  Subsequently, his uncle and aunt were killed in cold blood.  His mother Muneera Begum was also arrested in 1991.

HIAG: HIAG (German: "Hilfsgemeinschaft auf Gegenseitigkeit der Angehörigen der ehemaligen Waffen-SS" , literally "Mutual aid association of former Waffen-SS members") was a lobby group and a revisionist veterans' organisation founded by former high-ranking Waffen-SS personnel in West Germany in 1951.  Its main objective was to achieve legal, economic and historical rehabilitation of the Waffen-SS.

Comrades Association: The Comrades Association was a communist organization that operated in the State of Hyderabad in India during the rule of the Nizam.  It represented the Communist Party of India in Hyderabad State.  The Comrades Association played a very influential role in the Andhra Mahasabha.  Revolutionary Urdu poets Makhdoom Mohiuddin and Raj Bahadur Gour were among the active figures in the Association.  Along with three other groups, the Comrades Association was organized as the ''Nizam State Communist Committee" in 1939, and played an active role in the Telangana Rebellion.

Herbert Needleman: Herbert Leroy Needleman (December 13, 1927 – July 18, 2017), known for research studies on the neurodevelopmental damage caused by lead poisoning, was a pediatrician, child psychiatrist, researcher and professor at the University of Pittsburgh, an elected member of the Institute of Medicine, and the founder of the Alliance to End Childhood Lead Poisoning (later known as the Alliance for Healthy Homes, it has since merged with the National Center for Healthy Housing).  Dr. Needleman played a key role in securing some of the most significant environmental health protections achieved during the 20th century, which resulted in a fivefold reduction in the prevalence of lead poisoning among children in the United States by the early 1990s.  Despite engendering strong resistance from related industries, which made him the target of frequent attacks, Needleman persisted in campaigning to educate stakeholders, including parents and government panels, about the dangers of lead poisoning.  Needleman has been credited with having played the key role in triggering environmental safety measures that have reduced average blood lead levels by an estimated 78 percent between 1976 and 1991.  He died in Pittsburgh in 2017.

Paul Hausser: Paul Hausser (7 October 1880 – 21 December 1972) was a high-ranking commander in the Waffen-SS of Nazi Germany during World War II who played a key role in the post-war efforts by former members of the Waffen-SS to achieve historical and legal rehabilitation.

Frederick Hubert Vinden: Frederick Hubert Vinden (1895 - 2 February 1977) was a Brigadier in the British Army who played a key role in the establishment of new officer selection methods, the War Office Selection Boards.  Vinden later had a career in international service.  He played a key role in building the Indian Civil Service after the country was declared independent in 1947, and worked for the UN, UNESCO, and the OECD.

Supporting paragraphs: Felix Steiner Paul Hausser
Answer: Paul Hausser