After World War 2, the Australian government encouraged immigration to boost the population and tax revenue. This led to an influx of migrants from Greece, Italy and Britain, introducing their cultural influences, customs and foods to Australia. In the 1970s, Asian immigration increased diversity with Vietnamese and Cambodian migrants. Today, people from all over the world immigrate to Australia, integrating diverse foods into the culture. Migrants brought foods from their home countries as a way to maintain aspects of their culture and beliefs in their new country. Over time, these foods spread and became part of regular Australian diets. Countries have different diets based on resources, climate and religious beliefs.