The most intense part of a conflict is the climax. This is the point in the conflict where tensions are at their highest and the outcome of the conflict is uncertain. It's the part of the story where the protagonist and antagonist confront each other directly and the stakes are the highest. The climax is usually the most action-packed and emotionally charged part of the conflict, and it's where the story reaches its peak of intensity. After the climax, the story moves into the denouement or resolution, where loose ends are tied up and the conflict is resolved. The deus ex machina is a plot device where an improbable event or character suddenly appears to resolve the conflict, but it is not typically considered the most intense part of a conflict.