U.S.-based Muslim cleric Fethullah Gülen, who had been residing in self-imposed exile in the United States since 1999 and was accused by Turkey of orchestrating terrorist activities, has passed away, according to official statements and confirmations from close associates. The cleric, who was at the center of extensive political controversy between the United States and Turkey, was 86 at the time of his death.

Gülen was accused by the Turkish government of being behind a failed coup attempt in 2016, an allegation he consistently denied. According to Ankara, Gülen was the leader of a terrorist organization that they referred to as the Fethullahist Terrorist Organization (FETO). Turkish authorities held him responsible for fostering a deep network of followers within various Turkish institutions including the military, police, and judiciary with the purported aim of overthrowing the state.

Despite multiple requests from the Turkish government for his extradition, the United States had not acquiesced, citing a lack of convincing evidence presented by Turkey to support their claims of terrorism and conspiracy linked to Gülen. This issue had been a significant sticking point in U.S.-Turkey relations, with continuous tension and diplomatic standoff between the allies.

Fethullah Gülen had long maintained his innocence, claiming his movement - Hizmet, was purely a peaceful initiative focused on education, charitable activities, and interfaith dialogue. The movement has set up a network of schools and educational initiatives across dozens of countries, advocating for a moderate form of Sunni Islam, significantly contrasting with radical Islamic beliefs.

In response to his death, reactions varied widely. While his followers mourn the loss of a spiritual guide preaching peace and dialogue, in Turkey, the sentiment might be significantly mixed. Some view Gülen as a figure who challenged an increasingly authoritarian regime, whereas others see him strictly as a figure of opposition and instability that nearly disrupted the nation's governance through the failed coup.

The exact implications of Gülen’s death for the legal and diplomatic tussle between the United States and Turkey remain to be seen. However, it symbolizes the end of a particular chapter in Turkish politics, characterized by internal divisions and international disputes. The upcoming period will reveal whether his passing will ease any of the persistent tensions between the United States and Turkey or provide a pathway to resolution over the disputed extradition and terrorism allegations. For now, Fethullah Gülen’s legacy remains a topic of contention, weaving through discourses of democracy, religion, and international diplomacy.