Ronin (1998)

A former US Intelligence Agent assembles a team of mercenaries to steal a mysterious package wanted by the Irish and the Russians. They plan an ambush on a heavily-armed convoy and successfully obtain the case, only to discover that it has been switched with a decoy that explodes. The team must now locate and capture the traitor while being pursued by the Russians. In a final confrontation, they manage to retrieve the case, but at a great cost. Ultimately, a peace agreement is reached between Sinn Féin and the British, and the main character drives off with his CIA contact.