You’re correct, it would take like 100k+ soldiers to hold the strait, but that’s not their goal.
US is doing Kharg Island to put economic pressure on Iran. Similar issues, but at least it’s smaller.
The US trying to hold a 500 mile coast line killbox around the strait seems impossible with 5000 marines, that’s 10 guys holding an entire mile
Does anyone know if I’m wrong? Genuinely not a military guy it just seems trivial for Iran to break thru