Did US planned to Invade Canada ?

A recent Washington Post article entitled:

Raiding the Icebox; Behind Its Warm Front, the United States Made Cold Calculations to Subdue Canada, by Peter Carlson (30 December 2005),

focuses on a detailed US Plan to Invade Canada entitled "Joint Army and Navy Basic War Plan -- Red," It was formulated in the late 1920s, approved by the US War Department in 1930, updated in 1934 and 1935, withdrawn in 1939 and declassified in 1974. (See complete WP article below)

Following the publication of the WP article, which was casually presented as political humor, Canadian network TV and print media were quick to dismiss the matter outright.

It was in a bygone era. It no longer applies: the US administration would never dream of actually invading Canada.

Yet upon more careful examination, an ongoing plan to annex Canada to the US, is still (unofficially of course) on the books. The underlying procedure, however, is not straightforward as in the case of an outright military invasion (e.g. under the 1930 "Joint Army and Navy Basic War Plan -- Red"). Today, it involves what the media refer to as "Deep Integration", which constitutes a more polite term for "Annexation".

( Full story here )