Original sentence: During and after the Indonesian National Revolution, which followed the Second World War, (1945-1965) around 300,000 people, pre-dominantly Indos, left Indonesia to go to the Netherlands.The Dutch tried to hold on to their colonial possessions in Indonesia during the Indonesian National Revolution (1945-1948), but lost their political battle to the newly founded Republic of Indonesia.The fifth wave, 1957-1964: During this overlapping period a distinctive group of people that originally opted for Indonesian citizenship found that they were unable to integrate into Indonesian society and also left for the Netherlands.The first wave, 1945-1950: After Japan's capitulation and Indonesia’s declaration of independence around 100,000 people, many former captives that spent the war years in Japanese concentration camps and then faced the turmoil of the violent Bersiap period, left for the Netherlands.The second wave, 1950-1957: After formal Dutch recognition of Indonesias independence many civil servants, law enforcement and defence personnel left for the Netherlands.The third wave, 1957-1958: During the political conflict around the so called ‘New-Guinea Issue’ Dutch citizens were declared undesired elements by the young Republic of Indonesia and around 20.000 more people left for the Netherlands
Edited sentence: During and after the Indonesian National Revolution, which followed the Second World War, (1945–1965) around 300,000 people, pre-dominantly Indos, left Indonesia to go to the Netherlands.The Dutch tried to hold on to their colonial possessions in Indonesia during the Indonesian National Revolution (1945–1948), but lost their political battle to the newly founded Republic of Indonesia.The fifth wave, 1957–1964: During this overlapping period a distinctive group of people that originally opted for Indonesian citizenship found that they were unable to integrate into Indonesian society and also left for the Netherlands.The first wave, 1945–1950: After Japan's capitulation and Indonesia’s declaration of independence around 100,000 people, many former captives that spent the war years in Japanese concentration camps and then faced the turmoil of the violent Bersiap period, left for the Netherlands.The second wave, 1950–1957: After formal Dutch recognition of Indonesias independence many civil servants, law enforcement and defence personnel left for the Netherlands.The third wave, 1957–1958: During the political conflict around the so called ‘New-Guinea Issue’ Dutch citizens were declared undesired elements by the young Republic of Indonesia and around 20.000 more people left for the Netherlands