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Caine: "Air Power Has Its Limits"
Gen. Dan Caine, chairman of the Joint Chiefs of Staff, is the president's senior military adviser. In the summer of 2026 he told Congress, in five words, what the war's critics had said since March: "Air power has its limits." In private, CNN reported, he told the vice president, the secretary of state, and the CIA director that the bombing was unlikely to reach the president's goals and that the country needed an "off-ramp." This page sets out what he said, what his own command asked for, and what that means for the ground question.
Early warnings
On 4 March 2026, standing beside Hegseth as the Pentagon claimed control of Iran's skies, Caine said: "It's still very early." "But the balance is shifting. We've always got to remember that these operations are complex, dangerous and far from over" (New York Times, 4 March 2026). Two days earlier CSIS's Mark Cancian had said: "Air power alone has never been able to effect regime change. So, they need something else."
"Air power has its limits"
At a public hearing on the war in July, Caine told lawmakers that "airpower has its limits," as the Jerusalem Post and Ynetnews later reported. IBTimes UK, on 3 August, called the line a concession "that bombing alone cannot deliver what the president wants," and reported that CIA and Defense Intelligence Agency assessments said bombing "is unlikely to shift Iran's position" (IBTimes UK).
CENTCOM asks for "unconventional" ideas
The same week, an officer in CENTCOM's intelligence branch emailed a broad group of military analysts: "We are looking for new creative and unconventional ways to pressure and punish Iran." The Jerusalem Post, reporting it from CNN, set out the three paths left: expand the air campaign, "commit US troops to riskier operations on the ground," or accept a deal short of the original aims. On the buried nuclear sites: "Fully eliminating them could therefore require American troops to enter Iran, an option carrying far greater military and political risks" (Jerusalem Post, 3 August 2026). Walla, in Hebrew, listed the ground option plainly: "Another option is placing American forces on the ground, among other things to take over Kharg Island or to remove Iran's enriched uranium" (Walla, 3 August 2026). CENTCOM's spokesman, Capt. Timothy Hawkins, said the command has "a long history" of innovative thinking.
The off-ramp
On 7–8 August, CNN reported, as Ynetnews and the Jerusalem Post carried it, that Caine had spent weeks telling other advisers that the military options on hand might not meet Trump's goals, and that he raised an "off-ramp" with Rubio, Vance, and Ratcliffe. His main worry: "dwindling US stockpiles of key munitions." Ynetnews added that "many administration officials and outside analysts believe a decisive defeat of Iran would require a large ground operation," that it "could cost thousands of American lives," and that "the Pentagon has contingency plans for such scenarios" (Ynetnews; Jerusalem Post). In the same meeting, a source said, Caine made clear that if operations went ahead, "we could absolutely wreck them." Caine's spokesman, Joseph Holstead, said the Joint Staff does not discuss the chairman's confidential conversations.
An officer told Mario Nawfal the command was split: "the Joint Chiefs chairman wants an off-ramp, CENTCOM wants more targets."
What the chairman's words mean
A general who says air power has limits is saying what the next step would be if the president insists on the goals: ground forces. The chairman's answer was to look for a way out. That leaves two paths only: the goals are dropped, or the ground plans the Pentagon already holds are used. Israel's prime minister was saying in public, the same summer, that toppling Iran's regime "is within reach" and that the uranium must be "taken out." The pressure on the goals did not ease. See the paused uranium raid and the generals' warning.
Status: Dan Caine is alive. Mark Cancian is alive. Timothy Hawkins is alive. Joseph Holstead is alive. Brad Cooper is alive.
Sources
- New York Times, 4 March 2026 — Caine, "far from over."
- IBTimes UK, 3 August 2026 — "Air power has its limits"; the CENTCOM email.
- Jerusalem Post, 3 August 2026 — troops may have to enter Iran.
- Walla, 3 August 2026 — ground forces for Kharg or the uranium.
- Ynetnews, 7 August 2026 and Jerusalem Post, 8 August 2026 — the off-ramp.
- Mario Nawfal on X, 15 August 2026 — the command split.
Last Updated: 2026-09-26