The document discusses the concept of trust in international relations and analyzes the Iran nuclear issue. It argues that cultural differences, conflicting interests, and disparity of power lead to lack of trust between states. International organizations like the UN and alliances can help build trust by promoting equality and transparency. While Iran claims its nuclear program is peaceful, the UN Security Council has imposed sanctions. However, an alternative agreement between Brazil, Iran and Turkey could be a way to build trust and approach both Middle Eastern and Western interests.