One of the results of the break-up of the Soviet Union and the subsequent political independence and economic collapse of its Central Asian republics has been the resurgence of pastoral nomadism. Taking the Kyrgyz people as a representative example, nomadism was the centre of their economy before Russian colonization at the turn of the 20th century, when they were settled into agricultural villages. The population became increasingly urbanized after World War II, but some people still take their herds of horses and cows to high pastures ("jailoo") every summer, continuing a pattern of transhumance.