Heightened Vigilance: US Bases in Europe Move to 'Charlie' Alert Level

The US military has raised its alert level to the second-highest tier at several of its bases in Europe, according to US media reports citing unnamed officials. The "Charlie" level is enacted when there is an incident or intelligence suggesting a potential terrorist activity or attack on personnel and facilities. The highest level, "Delta," is activated in the event of a terrorist attack or an imminent threat.

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