Tensions between the United States and Iran have escalated dangerously over the past week. Although both sides deny that war is imminent, a violent confrontation grows more likely with every passing day.

Over the last five years, Turkey-U.S. ties have gone through one of the most turbulent periods in the long history of relations between the two countries. Despite previous crises, seldom have we seen so many incidents over such a short period of time.

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

Debates and discussions regarding Iran have spanned years in Washington. From the "axis of evil" to "Sunni-Shiite equilibrium" and the Joint Comprehensive Plan of Action (JCPOA) to the "maximum pressure" campaign, there have been a variety of different positions and policies offered by the last three administrations in the White House.

The U.S. announced Monday it will not renew special waivers that allowed eight countries, including Turkey, to import Iranian oil without violating renewed sanctions.

The Trump administration continues to violate the basic principles of the international order established by the U.S. itself after World War II because the system no longer serves its interests. Rising global and regional powers, such as India, Indonesia and especially China, are the main beneficiaries of the continuation of the current system. The U.S. has been pursuing paradoxical policies, especially for the last decade.

Its geographic location as a bridge between East and West and its geopolitical significance made Turkey, particularly Istanbul, attractive for Bond movies. During the Cold War, as one of the most critical cities that absorbed the stress and tension of the rivalry between the Soviet Union and the U.S., the backdrop of Istanbul made the jobs of the producers of the popular culture films easier. This status of Istanbul continued following the end of the Cold War.

With no Daesh-held territories left and McGurk, Votel gone, time for the US to seriously reassess the role of CENTCOM and its policies

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.

As tension between Turkey and the U.S. regarding the S-400 air defense systems grows, the expectation is that a creative solution to de-escalate the stress on bilateral ties and find mutually acceptable ways out of this turbulence will be sought.

Turkey's decision to purchase Russian S-400 air defense system has become a major sticking point with the U.S. While Turkey attaches great importance to procuring the air defense system, U.S. policymakers, who consider Turkey's decision a complete deviation from its traditional alliance system, have begun to threaten the country.

While many focus nowadays on the S-400/F-35 tensions taking place in Turkish-American relations, another issue, namely Syria, is being discussed at the highest levels among officials from the two countries. For the last eight years, the divergence of policies in regards to the crisis in Syria has become one of the most significant irritants in bilateral relations.

Turkish-American relations are strained again ahead of the delivery of S-400 air defense systems from Russia. In their Moscow meeting at the beginning of the week, President Recep Tayyip Erdoğan and Russian President Vladimir Putin confirmed the plan to deliver the first set of S-400 air defense systems to Turkey in early July.

The Middle East has been experiencing turmoil since the Arab Spring uprisings and revolutions. A process of counterrevolution started with the military coup in Egypt in 2013. Much of the regional mayhem stems from the United Arab Emirates (UAE) and Saudi-led efforts to reverse the democratization process initiated with the Arab uprisings and discourage any popular demands.

As the last remaining Daesh territory is on the verge of elimination, a worrying number of Daesh militants, mostly women and their children, have surrendered themselves to the People's Protection Units (YPG).

What is the context of the decision? What does this decision mean for Israel and for Netanyahu? What are the possible implications of the decision?

Which natural resources did the YPG seize control of after its engagement with the U.S.? What is the extent of YPG-controlled natural resources and what is the YPG’s energy trade capacity? How important are these resources?