Southeastern Europe is a region of Europe that includes countries such as Serbia, Croatia, and the BALKAN states. The term 'Southeastern European' can be broken down into three parts: SERB (4 letters), CROAT (5 letters), and BALKAN (6 letters). SERB refers to Serbia, a country located in the Balkans region of southeastern Europe. CROAT refers to Croatia, a country located in the same region. BALKAN refers to the BALKAN states, a group of countries located in southeastern Europe. Together, these three terms refer to the countries located in the southeastern region of Europe.