For most of the twentieth century, New Zealand cuisine remained highly derivative of British food. Unlike Britain, New Zealand escaped major food shortages during World War II. However, demands of the US forces in the Pacific as well as exports to Britain saw meat and butter rationed between 1943 and 1950. From about the 1960s, the advent of affordable air travel allowed New Zealanders to travel overseas more easily. Many New Zealanders went to Europe on overseas experience where they encountered French and Italian cooking, and also the Indian and Chinese restaurants of Britain as well as the New British cuisine. When they returned home they helped create a demand for better quality food and more variety. They also tried to discover what New Zealand cuisine was, experimenting with hangi and gaining a greater appreciation of New Zealand produce.