一名美国官员表示，美国采取“主动措施”以确保安全。一名知情人士称，美国将驻扎在英国米尔登霍尔皇家空军基地的加油机调往德国一处基地，原因是未明确的伊朗威胁。
A U.S. official said the U.S. takes "proactive measures" to ensure safety. The U.S. moved refueling tankers based at RAF Mildenhall in the United Kingdom to a base in Germany because of an unspecified Iran threat, according to a source familiar with the matter.
该知情人士称，米尔登霍尔皇家空军基地和莱肯希斯皇家空军基地的武力防护级别已提升至FPCON Charlie级别。
The force protection levels at RAF Mildenhall and RAF Lakenheath were increased to FPCON Charlie, according to the source.
一名美国官员对ABC新闻表示：“我们采取主动措施，确保我们的飞机、我们的人员以及我们的设施保持安全。”
"We take proactive measures to ensure our aircraft, our people, and our installations remain safe and secure," a U.S. official told ABC News.
《华尔街日报》最先报道了飞机为何被调离这些基地的原因。《战争地带》最先报道了这些基地的安全态势已被提升。
The Wall Street Journal was first to report on why the aircraft had been moved away from the bases. The War Zone was first to report that the security postures at the bases had been increased. "U.S.
一名美国空军发言人在一份声明中表示：“美国空军飞机出于包括训练和实际需求在内的各种原因，在不同设施和作战地点之间轮换。美国军用飞机根据与盟友和伙伴的准入、驻扎和过境协议进行部署。出于作战安全考虑，我们不会就资产调动提供更多信息。”
Air Force aircraft rotate between installations and operating locations for a variety of reasons including training and real world requirements," a U.S. Air Force spokesperson said in a statement. "U.S. military aircraft are hosted in accordance with access, basing, and overflight agreements with our Allies and partners. Due to operations security, we will not provide further information on movement of assets."