Samuel Oakford has further details on the U.S. role in blocking an investigation into war crimes in Yemen:

A Dutch-led effort to create a human rights mission for Yemen was abandoned Wednesday amid intense Saudi opposition at the UN, but human rights experts are laying blame in part at the feet of the United States, which failed to vigorously back the Netherlands — and may have worked behind the scenes to head off the independent investigation.

According to Oakford’s report, the U.S. paid lip service to supporting the Dutch resolution, but then “simply let it die.” It’s not exactly shocking that our government wasn’t willing to back up an effort to investigate war crimes in a conflict in which its clients have been committing multiple violations of international law for months with U.S. help. Nonetheless, it’s important to understand the lengths to which the U.S. is prepared to go to back up the indefensible Saudi-led campaign. The U.S. has once again shamefully aided the Saudis and their allies yet again in their reckless intervention. In this case, the administration is aiding them in covering up the coalition’s excesses and abuses.

This part of the article sums things up pretty well:

“The resolution tabled by the Arab group represents a shameful capitulation to Saudi Arabia and has denied Yemeni victims their first real opportunity for justice,” said Balkees Jarrah, senior council at Human Rights Watch. “By failing to establish a UN inquiry, the Human Rights Council has squandered an opportunity to deter ongoing abuses in Yemen.”