Yes, Estonia is quaking with fear over potential Russian aggression. Tallin devotes two percent of its GDP to defense. Latvia is worried about Moscow’s intentions in the aftermath of the latter’s annexation of Crimea. Riga spends .9 percent of its GDP on the military. Lithuania also has a large ethnic Russian population and is on guard against potential provocations by Vladimir Putin. Vilnius commits .8 percent of its GDP on defense. Poland may be the country most insistent about the necessity of American troops along its border with Russia. To its credit, Poland has been increasing military outlays, but it still falls short of NATO’s two percent objective. Warsaw spent 1.8 percent last year.