I don't know about 2%, Canada hasn't spent that much since the 1960's... we went pretty much the whole Cold War under 2%. With the exception of the bump in spending due to the Afghanistan mission, we've been trending towards 1% since the breakup of the Soviet Union.
But I'd be onboard with 1.5% or 1.6% as a baseline long-term commitment, but with additional costs for Afghanistan type missions to be separately funded.
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