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Brigadier Sir Ivan de la Bere , KCVO , CB , CBE , BA ( Cantab ) , was a British Army officer in World War I and in World War II , when he played a prominent part in the Siege of Malta .
 British Army, Malta
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
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Answer:
 British Army, Malta