"This time, however, the challenge is very different, because the next adjustment will require that the Alliance achieve a new balance in the contributions made on the two sides of the Atlantic. To put it bluntly, it will require the Europeans to do more ... Currently, too many key operational capabilities have to be provided by the United States – as we saw during our Libya operation in 2011 ... This over-reliance on American assets ... is unsustainable in the long term." (Quoted from article)