After the United States unilaterally abandoned the Joint Comprehensive Plan of Action (JCPOA) nuclear agreement last year, Iran was upset because it felt increasingly depressed over its nuclear issue. In fact, Iran wants to implement the agreement in the hope that sanctions against the country will be alleviated. In the past few days, Iran has threatened to revive its nuclear program after the presence of US military equipment in the Gulf region. The United States argued that it was sending aircraft carriers and bomber aircraft due to a kind of indication and warning from Iran. The US is also determined to show a reaction in full force against any form of attack.However, the European Union seeks to reduce Iran's resentment. This group of European countries still considers JCPOA a solution to the problem of Iran's nuclear development. The European Union also rejected Tehran's threat. European leaders suggested that Iran continue its commitments according to the JCPOA and refrain from increasing tensions with the United States. The European Union is disappointed with sanctions imposed by the United States and continues to trade with Iran.A year ago, President Donald Trump ignored the JCPOA agreement and imposed sanctions on Iran. The United States asks all countries not to buy oil from Iran. The next sanction is a ban on iron, steel, aluminum and copper. This sanction has upset Tehran. Although the US imposed sanctions, the European Union is still opening trade relations with Iran.Iranian strong reaction is natural because the country is still carrying out its commitments in JCPOA. The European Union also still believes in Iran in implementing JCPOA. If Europe still believes in JCPOA, the United States should also open opportunities to return to the agreement and not pressure Iran on its nuclear issues. The United States is ambiguous in this matter. On the one hand, the United States put pressure on Iran. On the other hand, secretly allowing Israel, its main partner in the Middle East to develop its nuclear program.