Deletion of Strongpoint

Comment: WP:GNG-notable military concept. See books http://books.google.it/books?id=T6T0LDe0WyoC&pg=PA121&dq=%22Strongpoint%22&hl=en&sa=X&ei=ugQLU__GFc7T7AbYjIGoCA&redir_esc=y#v=onepage&q=%22Strongpoint%22&f=false here, http://books.google.it/books?id=G3dNVI7dx-8C&pg=PT101&dq=%22Strongpoint%22&hl=en&sa=X&ei=ugQLU__GFc7T7AbYjIGoCA&redir_esc=y#v=onepage&q=%22Strongpoint%22&f=false here, http://books.google.it/books?id=l_-l6sIfW-YC&pg=PA113&dq=%22Strongpoint%22&hl=en&sa=X&ei=DwULU9iiLMeM7AaK7IDoDQ&redir_esc=y#v=onepage&q=%22Strongpoint%22&f=false here; see also sources and discussion above. The nominator should be more familiar with 
Stance: keep
Cited policy: Wikipedia:Articles for deletion (WP:BEFORE)