美国为何打击这三处伊朗核设施

Core Viewpoint - The United States has targeted and attacked key Iranian nuclear facilities, aiming to eliminate Iran's nuclear capabilities, particularly focusing on Fordow, Natanz, and Isfahan [1] Group 1: Natanz Nuclear Facility - Natanz is located in the desert of Isfahan province and serves as Iran's main uranium enrichment site, consisting of a fuel enrichment plant and an experimental fuel enrichment plant [2] - It is considered the largest uranium enrichment facility in Iran and has been a target for Israeli airstrikes due to its potential to develop nuclear weapons capabilities [2] Group 2: Fordow Nuclear Facility - Fordow is Iran's second nuclear enrichment facility, smaller than Natanz, located approximately 100 kilometers southwest of Tehran [3] - The facility is situated about 80 meters underground and is designed to withstand airstrikes, making it a challenging target for military operations [3] - Military experts indicate that only specialized bunker-busting bombs, such as the GBU-57, can effectively target the deeply buried Fordow facility [3] Group 3: Isfahan Nuclear Facility - Isfahan is described as Iran's largest nuclear research complex and was attacked by Israel on the morning of the 21st [4] - The facility requires precise targeting and extensive intelligence support for effective strikes, making it particularly difficult to attack [4] Group 4: Uranium Enrichment Levels - Enriched uranium with a purity of 90% or higher is suitable for nuclear weapon manufacturing, and Western nations have accused Iran of attempting to develop nuclear weapons [5] - As of May 17, Iran possessed 408.6 kilograms of uranium enriched to 60%, significantly up from 274.8 kilograms in February [5] - The U.S. insists that Iran should cease all levels of uranium enrichment, while Iran claims its enrichment activities are for peaceful purposes [5]