Furious over new American sanctions, Iran said on Tuesday that it had lodged a complaint with the commission that polices possible violations of the Iranian nuclear agreement.

The complaint, disclosed by the speaker of Parliament, Ali Larijani, accused the United States of breaching the 2015 agreement, known as the Joint Comprehensive Plan of Action, between Iran and six world powers, including the United States.

Some analysts interpreted the move as posturing aimed at ensuring that if President Trump withdrew the United States from the agreement, as he has threatened, then his administration would be blamed and not Iran.

The agreement, which eased or ended many sanctions on Iran in return for its verifiable pledges of peaceful nuclear work, is regarded as one of the Obama administration’s signature foreign policy achievements.