Ministers for Defence of Luxembourg

Pierre Grégoire (9 November 1907 – 8 April 1991) was a Luxembourgish politician in the Christian Social People's Party (CSV), journalist, and writer. Before turning to politics full-time, he wrote for the Luxemburger Wort newspaper.
Before World War II, he organised the development of the CSV's precursor, the Party of the Right, along with Jean Baptiste Esch. He was a CSV Deputy from 1946 onwards, and was the party's secretary-general from 1952 to 1960. He was a member of the Council of Europe from 1956.
He also held several government posts: he was the minister for the Interior, Religion, Arts and Sciences and Transport from 1959 to 1964, then became minister for Cultural Affairs, Education and the Civil Service from 1964 onwards. From 1969 to 1974 he was the president of the Chamber of Deputies.

Pierre Dupong (French pronunciation: [pjɛʁ dypɔ̃]; 1 November 1885 – 23 December 1953) was a Luxembourgish politician and statesman. He was the 16th prime minister of Luxembourg, serving for sixteen years, from 5 November 1937 until his death, on 23 December 1953, and was also responsible at different times for the ministries of finance, the army, agriculture, labour and social matters. He founded the Christian Social People's Party (CSV) as the main conservative party after the Second World War, having been a founding member of the Party of the Right (PD) in 1914.
He was one of the founding members in 1914 of the Party of the Right, and was elected to the legislature in 1915. He served as Director-General for Finance from 1926 to 1937 and as Minister for Social Security and Labor in 1936 and 1937.
His first government was the Dupong-Krier Ministry (1937–1940). Between 1940 and 1944, Dupong then led the Luxembourgish government-in-exile, after Luxembourg had been occupied by Nazi Germany. He fled the country along with the rest of the Luxembourg government and the Grand Ducal Family of Luxembourg, settling in France. Once in Bordeaux, they were granted transit visas from the Portuguese consul Aristides de Sousa Mendes, in June 1940. Pierre Dupong, along with his wife Sophie, and their children Marie Thérèse, Lambert Henri, Henriette and Jean, followed the Grand Ducal family through Coimbra and Lisbon, settling at Praia das Maçãs after the Grand Ducal family had moved to Cascais. By August, the entire entourage had moved to Monte Estoril. The Dupong couple stayed at Chalet Posser de Andrade until 26 September 1940, while their children remained there until 2 October 1940. On 26 September, the couple boarded the S.S. Excalibur headed for New York City, arriving on 5 October 1940. Georgette and Betty Bech, the wife and daughter of Joseph Bech, the Foreign Minister of the Luxembourg government-in-exile, traveled with them.
Between 1940 and 1944, he led the government in exile in Montreal.He then presided over the Liberation Government, the National Union Government, and the Dupong-Schaus and the Dupong-Bodson governments. He is also notable for sending Luxembourgish soldiers in the UN mission during the Korean War, as part of the Belgian United Nations Command.
He was the father of Jean Dupong, who became a minister and CSV deputy himself.