No, the US is Not About to Invade Iran
People are slightly hysterical that the US deploying a Marine Expedientiary Unit to the Strait of Hormuz means they are about to launch a ground invasion into Iran. This US vet explains why nothing could be farther from the truth.

A Marine veteran has taken to social media to dispel widespread speculation that the U.S. deployment of the 31st Marine Expeditionary Unit (MEU) to the Strait of Hormuz signals an imminent ground invasion of Iran amid the ongoing U.S.-Israel-Iran conflict.
In a video posted on TikTok by user @danielsaysso, the veteran (identified as Daniel) draws from his own deployment experience with the 15th MEU in the same region back in 2010 to explain the limited scope of such units.
"A lot of people saying right now that the deployment of the 31st Marine Expeditionary Unit to the Straits of Hormuz means the United States is about to launch a ground invasion of Iran," Daniel says in the clip. "As someone who actually deployed to the Straits of Hormuz with the 15th Marine Expeditionary Unit back in 2010, 16 years ago, let me slow that conversation down a little bit because you're wrong."
He emphasizes that an MEU, consisting of about 2,000 Marines aboard a few amphibious ships, is not equipped for large-scale invasions. Instead, these units focus on specialized tasks like raids, evacuations, securing small objectives, anti-piracy operations, and maritime security.
"If the United States were about to invade Iran on foot with mechanized infantry, an armor—you wouldn't see 2,000 Marines shifting to the theater," he explains. "What an MEU is actually useful for in a place like the Straits of Hormuz is much narrower in scope. They are there to secure shipping lanes, respond to attacks on tankers, evacuate civilians if they have to, maybe seize a small island or port if something escalates."
Daniel dismisses the invasion rumors as coming from "people online who have never served, never deployed, they had no combat experience whatsoever," adding that "sometimes the loudest voices in these crises are people with the least amount of experience."
While acknowledging potential risks—"Could the situation get worse? Are the people in charge people that I trust 100% to do the right thing? No, of course not"—he stresses that a single MEU, with just 3-4 ships, lacks the capacity for a full invasion of Iran.