A chillingly plausible near-future military thriller that imagines the unthinkable: the United States invading its former ally, Canada.By 2036, years of political collapse and authoritarian drift have transformed America. When a devastating attack on U.S. soil is blamed on Canadian intelligence, the evidence appears overwhelming. Canada s allies hesitate, and Washington has the justification it needs for war.But Canada has spent a decade preparing for the possibility that its southern neighbour might one day become its greatest threat.Alexander Ashcombe has spent five years living quietly in Canada under an assumed name, trying to leave his former life in the SAS behind. As American forces gather at the border, the life he built begins to disappear. Drawn back into uniform, Ash joins soldiers who know they cannot defeat the United States on American terms.Outgunned and outnumbered, Canada chooses a different kind of war.Cities are opened rather than destroyed. Bridges fall. Supply lines are severed. Forces disperse into hidden networks built to survive occupation and strike from the shadows. The objective is not to stop the Americans at the border. It is to make holding Canada impossible.As the occupation spreads, the conflict reaches from Cabinet rooms and intelligence centres to military units, occupied communities, and ordinary families. Resistance demands sacrifice. And for Ash and those around him, survival means deciding what they are prepared to risk for a country that refuses to surrender.Grounded in military realism, geopolitical tension, and the human cost of war, Invasion is the first book in the Canada at War series.Fans of intelligent military and political thrillers will find the geopolitical chessboard of Tom Clancy and the gritty operational tension of Mark Greaney in a gripping story of asymmetric warfare, resistance, espionage, and a country fighting to remain its own.