especially the Chinese. Peranakans, or those descendants of Chinese in Southeast Asia for many generations who were generally English-educated were typically known in Singapore as "Laokuh" (老客 – Old Guest) or "Straits Chinese". Most of them paid loyalty to the British Empire and did not regard themselves as "Huaqiao". From the 19th until the mid-20th century, migrants from China were known as "Sinkuh" (新客 – New Guest). A majority of them were coolies, workers on steamboats, etc. Some of them came to Singapore for work, in search of better living conditions or to escape poverty in China. Many of them also escaped to Singapore due to chaos and wars in China during the first half of the 20th century. They came mostly from the Fujian, Guangdong and Hainan provinces and, unlike Peranakans, paid loyalty to China and regarded themselves as "Huaqiao". 1937–1945 (World War II) The Second Sino-Japanese War, started in 1937, revived a perceived sense of patriotism in the local Chinese to their native homeland in China which led them to impose an embargo against Japanese goods and products in Singapore. During the war, many of the immigrants returned to China to fight the Japanese, while established entrepreneurs sent economic aid or military equipment to China. After the Japanese took Singapore in 1942, the Kempeitai tracked down many Chinese who aided the Chinese war effort against Japan. However, the Kempeitai's Sook Ching Operation was simply a massacre designed to drive fear into the local populace, so the Kempeitai simply picked out people based on accounts of masked informers, which in many cases were false accounts based on personal vendettas. There was also active anti-Japanese resistance during the war, such as Force 136, headed by Lim Bo Seng. After 1945 Race riots were common during the early post-war period, predominantly in the period between self-governance and independence in 1965. One major riot took place during birthday celebrations in honour of Muhammad, on 21 July 1964. There were records of high casualties (23 killed and 454 injured), as well as claims that the riot was politically motivated to oust the then Prime Minister (Lee Kuan Yew) and his cabinet as well as to prevent the promotion of a Malaysian Malaysia concept in Peninsular Malaysia. After the independence of Singapore in 1965, Singapore began to foster a more racially harmonious society in Singapore. Following the construction of Singapore national identity and nationhood,