*Banks, Martin (June 30, 2017). [http://www.defensenews.com/articles/defense-spending-increased-significantly-among-nato-allies Defense spending increased 'significantly' among NATO allies]. ''Defense News''. Retrieved July 4, 2017.</ref> | *Banks, Martin (June 30, 2017). [http://www.defensenews.com/articles/defense-spending-increased-significantly-among-nato-allies Defense spending increased 'significantly' among NATO allies]. ''Defense News''. Retrieved July 4, 2017.</ref> |