Iran restarts missile assembly from stockpiled parts at underground sites

The war of attrition the Journal describes sets Iran's weapons stockpile against the interceptor stockpiles of the United States and Gulf states ^[5]. The Journal gives no figures, and no mention of oil prices or defense shares ^[8]. The officials are unnamed. A position taken off this report is a position on their assessment.

The split between propellants is what matters operationally. Solid-propellant missiles can be stored ready to fire, while liquid-propellant ones have to be fueled shortly before launch, and Iran has restarted production of both ^[3]. The naval blockade cut off imports of components and of raw materials for solid fuel ^[4].

Tal Inbar, a senior analyst at the Missile Defense Advocacy Alliance, said damaged infrastructure can be repaired once airstrikes stop and that new components can be bought from other countries and stockpiled, and that it would be extremely naive to think Iran is not rebuilding its missile production capacity ^[6]. That is a claim about what a ceasefire allows.

Trump and other administration officials have consistently argued that Iran's military capabilities have been sharply weakened ^[7], and the two accounts are not as far apart as the framing suggests. Output below prewar levels is what degradation looks like ^[4], and assembly from a finite parts inventory under a blockade is a declining line unless Inbar's foreign suppliers show up ^[6]. The competing case, and the one that would move a price, is that stockpiled parts plus new underground production sites put a floor under Iranian output ^[2].

What separates those two is quantities, and the quantities that matter are solid-propellant ones. If solid-fuel assembly holds up while the blockade holds, then imported raw material was not the binding constraint the officials named ^[4], and "sharply weakened" loses its evidence ^[7]. If output tails off as the parts inventory is consumed, the administration's description survives on its own terms, and interceptor stocks stop being the scarce resource ^[5].

Underneath both claims is a spending choice that belongs to neither. Iran's reported response to being bombed is to build new production underground ^[2]. That is money going into survivability. Detected activity so far includes the Khojir missile complex in southeastern Iran ^[2].