Illegal immigrants from Somalia and Afganistan during their arrest by the Hellenic Coast guard on June 13, 2009.During the recent years, Greece has been the path for thousands of illegal immigrants for their crossing from Turkey to Greece and other European countries. Only in 2009, 146,000 illegal immigrants were arrested in Greek borders during their effort to pass into the Greek territory. The main places of entrance are the islands of Samos, Mitilini and Agathonisi which are situated near the borders with Turkey. In fact, Turkish slave traders make big profit out of the slave trading since they charge 2000-3000 euros for each immigrant for their journey from Turkey to Greece. Thus, Greek officials blame Turkey for taking insufficient measures to limit the outflow of immigrants from its own territory. As a result, the Hellenic Coast Guard possesses a key role in the area of the Aegean Sea. So, the only way to control illegal immigration is being every day in a state of alertness under unfavourable conditions.