格陵兰岛对金穹系统至关重要

Core Viewpoint - The article highlights President Trump's assertion that acquiring Greenland is crucial for the United States, particularly for the development of the "Iron Dome" missile defense system [1] Group 1: Missile Defense System - The "Iron Dome" missile defense system is part of a broader strategy to enhance the U.S. missile defense capabilities [1] - The development plan for the "Iron Dome" was announced by Trump in May of the previous year [1] - The total estimated cost for the "Iron Dome" system is approximately $175 billion [1]