In the aftermath of Trump's visit to Brussels one dynamic has been overlooked. It starts with a basic reality of NATO: when there is a mission, countries are not obligated to hand over military units for the effort. Instead, what happens is this (see chapter two of Dave and Steve's book), as one officer told us that "force generation is begging:" The officers at the NATO military headquarters in Mons, Belgium, along with the relevant regional command come up with a spreadsheet. Yes, an excel spreadsheet called the Combined Joint Statement of Requirements. The CJSOR is a list of all of...