Efforts toward normalization between Turkey and Armenia in April 2009 have brought to light ongoing tensions in Turkish-Azerbaijani relations. Though united by language and ethnicity, the potential for the realization of "one nation, two states" has brought forth resentments between the two countries. This brief addresses factors that contribute to questions including: What substantiates the Turkey-Azerbaijan relationship? And what is the rationale of this bond? Though limited social bonds connect the two societies, they have hardly built up meaningful links since Azerbaijan's independence and the knowledge of each other lacks depth. Turkey's constantly changing government in the post-Soviet period made the country a confusing partner to deal with. The recent questioning in Azerbaijan of Turkey's central standing reaches beyond the feeling that Turkey has betrayed Azerbaijan in its dealings with Armenia.