I cited a BBC article on his subject several days ago. General Petraeus has expressed his displeasure with this development:
General David Petraeus, the chief of the US Central Command, which oversees US military operations in Iraq and Afghanistan, called the inscriptions, which he said he only learnt about on Wednesday, "disturbing".A NATO colonel has said they will also respond appropriately -
"This is a serious concern to me and the other commanders in Iraq and Afghanistan because it indeed conveys a perception that is absolutely contrary to what we have sought to do," he said at the Centre for Strategic and International Studies in Washington on Thursday.
"We started to take action and notify both the ministry of defence and our chain of command and they have all taken action so that we don't purchase any more of these sights.More at the link.