The Globe and Mail: Canada refuses further role in missile defence

The Globe and Mail: Canada refuses further role in missile defenceThe formal announcement Thursday that Canada will refuse any further participation in the controversial U.S. missile-defence shield was met with an immediate warning that Canada had given up its sovereignty.

Although Prime Minister Paul Martin said Canada would “insist” on maintaining control of its airspace, U.S. ambassador Paul Cellucci warned that Washington would not be constrained.

“We will deploy. We will defend North America,” he said.

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Hmmm. Exactly, what does this mean “We will deploy. We will defend North America?”
Will the US defend Canada even if Canada doesn't want US defence?

The entire article is a can of who said what, when it was said and to whom it was said.