Former Vice President Mike Pence voiced his opposition to the memorandum of understanding between the U.S. and Iran in an opinion piece in The Wall Street Journal.

Pence, who served in the first Trump administration, praised President Donald Trump for taking the fight directly to Iran and acting decisively after the country threatened American allies, attacked U.S. partners and continued pursuing nuclear weapons.

"But the memorandum of understanding with Iran signed last week falls well short of what is required to end the Iranian threat," Pence wrote.

"It smacks of the kind of appeasement the president rightly rejected during our first term," Pence added. It isn't the deal a defeated Iran should be getting. It isn't even a deal — it's a plan to make a plan.

"It neither requires that Iran verifiably dismantle its nuclear weapons program nor prohibits continued enrichment of uranium," Pence wrote. "Instead, the agreement largely repeats promises Iran has made before.

"The central lesson of the past 47 years is that the Iranian regime doesn't keep its word," Pence added.

"Anything less than complete, verifiable dismantlement of its nuclear program leaves the regime able to restart the program when circumstances become more favorable," Pence continued.

Pence also criticized the MOU for leaving Iran’s ballistic-missile program untouched and for not requiring Iran to end its support for terrorist organizations, while also providing the Iranian regime with an estimated $5 billion a month through partial sanctions relief and renewed energy exports.

While the agreement’s timeline postpones answers to critical nuclear questions, it provides immediate economic benefits through partial sanctions relief and renewed energy exports, which are expected to generate an estimated $5 billion a month for the Iranian regime.

"That gets the sequence backward. The U.S. shouldn't provide economic relief first and seek security concessions later. We should secure the concessions first," Pence wrote.

"U.S. policy should be simple and direct: Dismantle the nuclear program, dismantle the ballistic-missile program, end support for terrorism, cease hostilities against America and Israel, and restore freedom of navigation in the Strait of Hormuz — or face the full force of the American military," Pence added.

"These demands are the minimum requirements for a durable peace," Pence continued.

Pence said he would continue to support Trump's efforts to secure peace.

"Peace through strength requires strength all the way to the finish line," Pence wrote.  "The regime is desperate for a lifeline. We shouldn't throw them one so haphazardly."