A top U.S. general on Tuesday signaled support for the Iran nuclear deal, saying the agreement, which President Donald Trump has threatened to withdraw from, has played an important role in addressing Iran’s nuclear program, Reuters reported.

“The JCPOA addresses one of the principle threats that we deal with from Iran, so if the JCPOA goes away, then we will have to have another way to deal with their nuclear weapons program,” said U.S. Army General Joseph Votel. JCPOA, or Joint Comprehensive Plan of Action, is the formal name of the accord reached with Iran in July 2015 in Vienna.

“There would be some concern (in the region), I think, about how we intended to address that particular threat if it was not being addressed through the JCPOA. ... Right now, I think it is in our interest” to stay in the deal, Votel said.

When a lawmaker asked whether he agreed with Mattis and Chairman of the Joint Chiefs of Staff General Joseph Dunford’s position on the deal, Votel said: “Yes, I share their position.”