Facing collapse of Afghan peace talks before they even start, the Trump administration has threatened to withhold up to $2 billion in aid unless President Ashraf Ghani and his main rival put aside their political differences and open negotiations with the Taliban.

Rebuking the Afghan officials as “irresponsible” and dishonorable, Secretary of State Michael R. Pompeo publicly warned that U.S. aid to the central government could be slashed after his emergency visit to Kabul on Monday failed to resolve the dispute between Ghani and his former coalition partner, Abdullah Abdullah.

“Because this leadership failure poses a direct threat to U.S. national interests, effective immediately, the U.S. government will initiate a review of the scope of our cooperation with Afghanistan,” Pompeo said.