New Delhi, Oct. 15 -- Turkey and Azerbaijan have long called themselves "one nation, two states". Now, a row over the hijab (headscarf) is testing that bond.

Experts have pointed out that while the headscarf controversy is the immediate trigger, Azerbaijan's ties with Israel could be a deeper source of tension. The controversy has also brought to the fore a deeper geopolitical fault line in the relationship between Ankara and Baku.

Videos purportedly showing girls wearing headscarves being denied entry to educational institutions have been widely shared on social media. Mint could not independently verify the authenticity of these videos.

The two countries have long described their relationship as "one nation, two states". However, Aze...