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The Iran nuclear deal of 2015 begins to unravel as the European Union takes the first step towards the reimposing of sanctions. Britain, France and Germany triggered a dispute settlement mehanism in the agreement which can result in the United Nations reimposing international sanction on Iran's economy, banks, and top officials within 2 months. This follows Iran's resumption of nuclear activities banned under the agreement. Earlier the U.S. withdrew from the agreement and the European Union tried to save the agreement. Recent tensions and the U.S. insistence on the renegotiating for a new agreement have led to this collapse of the 2015 nuclear agreement with Iran.

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This editorial in the WSJ points out that president Trump's and the Iranian government's response in the firing of missiles at a U.S. airbase in Iraq were intended to quiet things down so that there was no escalation. Both sides were in effect standing down which president Trump called a good thing. 

Beyond deterrence the U.S. effort is also to work with its European allies to open a path to renegotiating the 2015 Iran nuclear deal so that a long term settlement can be reached for the region. 

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Attacks by Houthi rebels in Yemen on Sauid Arabia's Aramco oil company installations are adding to geopolitical tensions. Houthi rebels in Yemen are supported by Iran and are in a war with a Saudi Arabia led coalition. This report says that the three year conflict has reached a point where instead of targeting Riyadh with missiles the Yemeni rebels in Sanaa are now targeting oil installations of Saudi Arabia. The rebels ousted a Said supported government in Sanaa and the the Saudis have failed to oust them from Sanaa, yet the conflict continues. The increase in geopolitical tensions between Iran and Saudis is pushing up oil prices along with the collapse of Venezuela's oil industry and production. Prices reached $75 a barrel in April 2018. Damage from a Yemeni missile hit a Saudi tanker in the Red Sea, a latest sign that the conflict could disrupt oil tanker traffic going towards the Suez Canal.  Trump administration plans to scuttle the Iran nuclear deal or renegotiate it are also increasing tensions. France's Macron favors renegotiating it compared to scuttling the whole deal, a point he made at the U.S. Congress this week, saying also that France will respect the nuclear deal with Iran. Tensions throughout the Middle East are now part of the rival powers Iran and Saudi Arabia and their proxy allies in the region seeking more influence. ...