What it would take to invade Kharg Island

Imagine a scenario where a rogue nation or a powerful military force decides to invade a strategic location in the Persian Gulf, sparking a regional crisis and global attention. The island of Kharg, located off the coast of Iran, has long been a crucial hub for the country's oil industry and a vital part of its national security. But what would it take for an invader to successfully capture this prized territory, and what would be the consequences of such an action?