In some areas in central and northern Italy, the number of immigrants is so large that it exceeds 10% of the total population. In total, 2.5 million foreigners now live in the Apennines. At the same time, the influx of immigrants compensates for the demographic decline of about 200,000 people per year. Many foreigners come to Italy as tourists and then refuse to return to their homeland. Numerous measures by the authorities aimed at combating illegal immigration have not yet been successful.