[13] Fidan was instrumental in formulating Turkey's regional strategy of providing active support for Syrian rebels engaged in combat against the regime of Bashar al-Assad.

[14] His tenure saw a shift from a security cooperation with Israel and the United States towards one with Iran[15] most notably Qasem Soleimani, the leader of the Al Quds division.

[14] During the Munich Security Conference[16] in February 2017, he delivered a list of 300 alleged supporters of the Gülen Movement to Bruno Kahl, president of the German Federal Intelligence Service (BND) in apparent expectation of cooperation during the political purges in Turkey following the failed coup attempt in July 2016.

[22] In September 2023, Azerbaijan launched a large-scale military offensive against the self-declared breakaway state of Artsakh, a move seen as a violation of the 2020 ceasefire agreement.

"[24] On 25 October 2023, Fidan warned that an Israeli ground invasion of the Gaza Strip could turn into a massacre, saying that those supporting Israel's actions are "accomplices to its crimes.