Turkey's foreign policy at the moment is full of hot topics, including the S-400 air defense system agreement, the country's removal from the F-35 fighter jet program, potential U.S. sanctions, the Eastern Mediterranean and northern Syria. How those issues are resolved could determine the next four years of Turkish policy.

Most regional and global powers have been oscillating between different positions and facing dilemmas in their foreign policy in the Syrian crisis due to the current comprehensive regional and global transformation.

The S-400 air defense system's delivery to Turkey has sparked debate among Western governments on Ankara's future treatment. The question at hand goes beyond concerns about the fate of Turkey-U.S. relations. This is much bigger than one key NATO ally removing another key ally from the joint F-35 fighter jet program.

The Pentagon removed Turkey from the F-35 fighter jet program, despite U.S. President Donald Trump's earlier comments about Ankara being treated unfairly over its move to purchase the S-400 missile defense system from Russia. That Congress favored Turkey's removal was no secret either. It remains to be seen whether the United States will levy sanctions on Turkey under the Countering America's Adversaries Through Sanctions Act (CAATSA).

After months of deliberations, Turkey began to take delivery of the Russian S-400 missile defense system last week.

The ups and downs in Turkey-U.S. relations in the last two decades have generated a paradoxical situation for scholars and observers alike.

The Justice and Development Party's (AK Party) poll defeat in the Istanbul mayoral election has accelerated political analyses for the coming period. Indeed, the fact that Republican People's Party (CHP) candidate Ekrem İmamoğlu could secure 54 percent of the vote is not just a twist of the alliance system, but also a result achieved by those aspiring to end the 17-year AK party rule through trial and error.

There is no shortage of important items on Turkey's political agenda. Ahead of Sunday's Istanbul rerun, the Turkish people are focused on Egyptian President Mohammed Morsi's death, the United Nations Human Rights Council report on the Jamal Khashoggi murder, the start of drilling efforts in the Eastern Mediterranean, the sentences being handed down in coup trials, the latest polling numbers, Republican People's Party (CHP) mayoral candidate Ekrem Imamoğlu's secret meeting with the moderator of the election debate and President Recep Tayyip Erdoğan weighing in on the mayoral race.

Everybody knows that Sisi and the Egyptian army are merely the ostensible perpetrators in front of the curtain

U.S. governments have been questioning the contribution of the NATO alliance for the last two decades. Although the U.S. pioneered the enlargement of the alliance, it mostly prefers to act unilaterally in its security policy, which creates problems for NATO.

The United States took its first 'concrete step' to encourage Turkey to rethink its plan to purchase the S-400 missile defense system from Russia. Washington was going to exclude Turkish pilots from the F-35 fighter jet training program, Reuters reported last week.

The U.S. is concentrating too much on the Middle East, which may cost it dearly; it has already issues such as the trade war with China, the Venezuelan crisis and Russia's increasing global effectiveness to handle

The NATO Council and Mediterranean Dialogue Partners Meeting took place in Ankara earlier this week, at a time when Turkey and the United States are experiencing tensions over the former's plan to purchase the S-400 missile defense system from Russia and disagreements on Turkish drilling in the Eastern Mediterranean.

In a quest to assure stability in the region, Turkey has to find new, more active, regional partners and maintain its opposition against the unilateral policies of foreign players

There are few democracies around the world with a domestic political debate as lively as the national conversation in Turkey...

Earlier this week, senior Turkish officials visited the U.S. capital to prevent further deterioration of bilateral relations. Treasury and Finance Minister Berat Albayrak, Defense Minister Hulusi Akar, Trade Minister Ruhsar Pekcan and Presidential Spokesman Ibrahim Kalın shared Turkey's perspective with their counterparts.

It is becoming more and more apparent that the relationship with the U.S. will dominate our foreign policy agenda in the upcoming years. This issue is not only limited to the widening rift in bilateral relations over the recent period but essentially related to the changing strategic calculations of Washington and Ankara.