Tuesday's puzzler

Some letters have been removed from the names of the countries listed below. Fill in the missing letters.

• S_O_ _ _IA
• _U_E_BO_ _ G
• C_O_T_ _
• _I_ER_ _
• _ _L_Z_

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Have fun! Answers to be found later in the comments....

Update: Today's smarty is Rachel from Pereiraville! Whoohoo! Hey, anybody ever visited any of the countries listed?