根据美国与希腊达成的液化天然气供应协议，自2030年起，美国每年将向希腊供应7亿立方米天然气

Core Viewpoint - The agreement between the United States and Greece will result in the annual supply of 700 million cubic meters of liquefied natural gas to Greece starting in 2030 [1]. Group 1 - The agreement signifies a strategic partnership in energy supply between the United States and Greece [1]. - The annual supply volume of 700 million cubic meters indicates a significant commitment to enhancing Greece's energy security [1].