币界网报道：[As Iran weighs retaliation for US attacks, the US and UK urge citizens in Qatar to take shelter in place] According to the Coin World Network, after Iran vowed to retaliate against the US attack on its nuclear facilities, the US and British governments asked citizens in Qatar to keep a low profile. The US Embassy in Doha said in a statement on Monday: "Out of an abundance of caution, we advise American citizens to stay in place and take shelter until further notice." British Foreign Secretary Lamy also made a similar statement in Parliament. On Monday, the head of the Iranian military said that Iran's response to Washington's weekend attack would be "proportional." According to the Coin World Network, Qatar has the largest US base in the region. The base is called Al Udeid Air Base, which is also the command headquarters of the US Central Command in the Middle East, responsible for overseeing US military operations in the Middle East. There are currently about 9,000 US troops in Qatar. The Qatari Ministry of Foreign Affairs recently announced that Qatar temporarily closed its airspace to ensure the safety of tourists and residents.