美国告诉英国必须将国防开支提高到5%。

Group 1 - The core message is that the United States has instructed the United Kingdom to increase its defense spending to 5% of GDP [1] Group 2 - This directive reflects the U.S. government's emphasis on strengthening NATO allies' military capabilities amid rising global security threats [1] - The increase in defense spending is expected to enhance the UK's military readiness and capabilities [1] - The move may lead to significant budget reallocations within the UK government to meet the new defense spending target [1]