The expense of NATO expansion is marginal when compared to the defence budgets of the major NATO States. The US defence expenditure alone for the fiscal year 2012 is $553 billion. [1] Further, the correct equation is not between the expense of stationing troops in these new States and the current saving from non-deployment. The balance is between the expense of forward deployment or other military investment and the prohibitive cost in dollars and lives from a conflict between NATO and Russia, or a conflagration in any of the Eastern republics. NATO expansion is nothing more than a cost-effective insurance policy against a very real risk.  [1] Department of Defence, US budget, gpoaccess,