The Tories have "hit the reset button" on the government's plan to purchase the F-35 fighter jet.
Twitter users have been quick to criticize the move, with many pointing to past assurances from ministers that the F-35 was the only plane that would work for Canada.
See some of the best tweets in the gallery below.
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The Huffington Post Canada | Posted: 12/12/2012 4:05 pm EST | Updated: 12/12/2012 8:22 pm EST