Rubio: Iran’s Conventional Military Shield Crippled as Nuclear Talks Advance
Secretary says Strait of Hormuz reopening is first condition for broader nuclear negotiations
Secretary of State Marco Rubio told the Senate Foreign Relations Committee on Tuesday, June 2, that the Trump administration believes its military campaign against Iran has significantly degraded Tehran’s conventional military capabilities and created an opportunity for negotiations over its nuclear program, even as tensions remain high over the closure of the Strait of Hormuz.
Rubio argued that Iran had sought to build a massive conventional missile, drone and naval force to shield its nuclear program from outside intervention. He said the administration’s military operation, which he referred to as “Operation Epic Fury,” substantially damaged Iran’s missile production capacity, reduced its launcher inventory and effectively eliminated the Iranian Navy as a meaningful military force. According to Rubio, Iran no longer possesses the conventional deterrent it hoped would protect its nuclear ambitions.
A central focus of the hearing was the ongoing standoff in the Strait of Hormuz. Rubio said Iran violated ceasefire understandings by failing to reopen the waterway and continuing threats against commercial shipping. He defended the administration’s decision to impose what he described as a blockade on Iranian shipping, arguing that if Iran prevents international commerce from moving through the strait, Tehran should not be allowed to export its own oil. He said the restrictions are costing Iran hundreds of millions of dollars in lost revenue each day.
Rubio indicated that negotiations with Iran remain active through intermediaries and suggested progress has been made. He said Tehran has agreed to discuss elements of its nuclear program that it previously refused to negotiate. However, he cautioned that talks remain difficult because Iran’s leadership structure is fragmented and decision-making often requires approval from multiple power centers within the regime, leading to delays of several days between proposals and responses.
The administration’s immediate objective is reopening the Strait of Hormuz. Rubio said Iran must publicly commit to allowing commercial vessels to transit freely, cease threats against shipping and cooperate in removing mines from the waterway. Only after those steps are taken would broader nuclear negotiations move forward.
On the nuclear issue, Rubio outlined the administration’s core demands. He said Iran must agree to negotiate the disposition of its stockpile of highly enriched uranium and accept severe long-term limits — or potentially the elimination — of domestic uranium enrichment activities. He stressed that any sanctions relief would be tied directly to Iranian concessions on its nuclear program and would not be granted simply in exchange for reopening the Strait of Hormuz.
Democrats on the committee pressed Rubio on the costs of the conflict. Ranking Member Sen. Jeanne Shaheen (D-N.H.) questioned the administration’s handling of the war, citing reports of depleted Patriot interceptor inventories, higher gasoline prices and the deaths of 13 U.S. service members. Sen. Chris Murphy (D-Conn.) argued that the conflict has effectively placed the global economy and American consumers at the mercy of negotiations over the strait’s reopening.
Despite those concerns, Rubio maintained that the military operation achieved its primary objective by stripping Iran of the conventional capabilities it intended to use as a shield for its nuclear program. He said the administration now sees a potential diplomatic opening, but warned that if negotiations fail, Iran will still face the reality that its conventional deterrent has been substantially weakened.
| Hormuz standoff keeps energy and fertilizer markets on edgeRubio says reopening key shipping chokepoint is administration’s top priority in Iran negotiationsWhile agriculture received little direct attention during Secretary of State Marco Rubio’s testimony before the Senate Foreign Relations Committee, his comments on Iran and the Strait of Hormuz carried significant implications for U.S. farmers, fertilizer markets, and agricultural transportation costs. Rubio made clear that reopening the Strait of Hormuz remains the Trump administration’s immediate objective in ongoing negotiations with Iran. He said Tehran must stop threatening commercial shipping, cease attacks on vessels, remove mines from the waterway, and allow normal transit through the strait before broader negotiations on Iran’s nuclear program can advance. The Strait of Hormuz remains one of the world’s most critical energy chokepoints, handling roughly one-fifth of global oil shipments and a substantial share of global liquefied natural gas exports. Continued disruptions have already contributed to higher crude oil prices and increased volatility across energy markets. For agriculture, the implications extend well beyond fuel costs. Fertilizer production and pricing are closely tied to natural gas and global energy markets, particularly in the Middle East. Any prolonged interruption of shipping through Hormuz raises concerns about ammonia, urea, and other fertilizer supplies reaching global markets, potentially increasing input costs for producers ahead of the 2027 crop year. Rubio argued that Iran’s refusal to reopen the strait prompted the administration to impose a blockade on Iranian oil exports, a move he said is costing Tehran hundreds of millions of dollars in lost revenue each day. He suggested negotiations remain active through intermediaries and expressed cautious optimism that progress could eventually lead to a reopening of the waterway. The testimony comes as fertilizer markets remain highly sensitive to Middle East developments. Producers have already faced rising nitrogen prices amid uncertainty surrounding Gulf shipping routes, while higher diesel and transportation costs continue to pressure farm margins. Beyond the immediate energy concerns, Rubio repeatedly emphasized that economic security, supply chains, energy production, and national security are increasingly interconnected. He argued that the United States must reduce dependence on foreign suppliers for critical materials and strengthen domestic production capabilities in strategically important sectors. Agriculture-related references during the hearing were primarily tied to food aid and food security: •Rubio defended U.S. humanitarian food assistance programs, particularly in Gaza and Sudan, arguing that the main challenge in Sudan is not funding but safely distributing food in a war zone. He said the administration has flexibility to surge assistance once secure distribution channels are established. • Sen. Jeanne Shaheen (D-N.H.) criticized the administration’s Food for Peace country selections, questioning why some countries receiving assistance are not among the world’s most food-insecure nations while countries such as Sudan, Afghanistan, Somalia, Syria, and Nigeria face acute hunger crises. Rubio responded by emphasizing distribution and security challenges rather than agricultural or commodity issues. For agricultural markets, the key takeaway is that developments in the Iran conflict and the status of the Strait of Hormuz remain major variables for fertilizer availability, fuel costs, freight rates, and overall farm input expenses in the months ahead. |
