Could prewar Europe have formed a NATO-style alliance?

Was a NATO-style alliance possible in Europe before World War I?

Probably not, because the period's alliances answered several different local threats rather than one common, overriding danger.

The Franco-Russian alignment faced Germany, while Germany's arrangement with Austria and Italy contained its own tensions. Italy was hostile toward Austria despite their alliance. A war centred on Austria's grievance therefore offered Italy little reason to join its partners. A broader collective-defence organisation would have needed a common overriding threat that these overlapping rivalries did not supply.