US Cavalry . Heading to Canada . in search of honor?

Trailer overview:
To save a group of horses that are about to be destroyed by the US Cavalry, a group of officers rebel and head to Canada to save themselves and the mounts.
Released: 1995, Orig.Duration: 111 min

IN PURSUIT OF HONOUR. starring Don Johnson.
Set in 1935. The true story of five solders who defied army orders to destroy hundreds of Army Horses, as part of the Army's modernisation programme.