"The international accord successfully blocked Iran’s paths to a nuclear weapon and has greatly strengthened the security of the United States and our allies," the letter stated.
Under the terms of the deal, nuclear-related sanctions on Iran were lifted in exchange for assurances Tehran’s nuclear program would remain peaceful.
In the letter, the military officers noted that Iran has complied with its obligations under the JCPOA by dismantling two-thirds of its centrifuges, surrendering 98 percent of its stockpiled uranium and destroying the core of its heavy water reactor.
Trump and Republicans in Congress have criticized the JCPOA, with Trump decrying it as one of the worst deals in history. Trump has not followed through with his promise to unilaterally withdraw from the agreement, but the administration is currently reviewing whether lifting sanctions on Iran is in the interest of US national security.
Trump has repeatedly slammed the Iranian nuclear deal and calling it disastrous for Israel.