Oh, I don’t know, Estonia and a couple of the other small countries, plus Poland*, are halfway sensible. The problem is that they are the exception, and most of the “sensibles”, Poland excepted, are so small.
*Poland hit the 2% of GDP for defense spending in 2016, increasing it by 9.4%, according to this source:
http://www.janes.com/article/57051/poland-to-raise-defence-budget
(Poland increased defense spending in 2015 by 18%: http://www.telegraph.co.uk/news/worldnews/europe/poland/11641852/Poland-increases-military-spending-in-response-to-Russias-belligerence.html )
They may find themselves running back into the nurturing bosom of “Mother Russia”.