Cannon for Cordoba

Cannon for Cordoba is a western film that was released in 1970. Filmed in Spain, the larger part of the movie takes place in Mexico in 1912. Directed by Paul Wendkos, it stars George Peppard, Pete Duel, Giovanna Ralli, and Raf Vallone, and features a musical score by Elmer Bernstein.

The first man to sign up for the job is Jackson Harkness Don Gordon, a soldier who has worked with Douglas before. At the beginning of the film, Harkness has to stand by and watch as his brother is tortured and killed by Cordoba. Douglas ordered him not to step in because they were undercover as sympathizers in the enemy camp and could not afford to make their true intentions known. As a result, Harkness vows vengeance on the captain and will not leave his side until the opportunity presents itself.The next two men that Douglas chooses for the operation are Andy Rice Pete Duel and Peter Nico Minardos, who have just broken out of the army jail when Douglas arrives with the orders for their release. The captain now has all of the men that he feels are necessary for getting the job done. However, a Mexican lieutenant, Antonio GutierrezGabriele Tinti, who holds a personal grudge against Cordoba, approaches him and demands to be part of the operation. He tells Douglas that he knows a woman, Leonora CristobalGiovanna Ralli who, for her own reasons, wishes to see Cordoba dead. If the captain includes him in the mission, she will help them by working her way into Cordobas confidence and getting him alone so that he will be vulnerable when they make their move. ........

Source: Wikipedia