CEVAP:

According to Montesquieu, in the southern countries, warm climate pushes people to be lazy. They do not like working and being disciplined. People living in these regions have problems with authority. For this reason, people living in the South cannot develop a regular and strong union. This includes political structures they build. They build weaker states. It is therefore much easier for states established in the South to be invaded. Similarly, it may be possible to enslave people living in the southern regions.