Rhetorical Strategy in Unity Speech

Read the following excerpt from a speech:

“In the face of adversity, we are often reminded of our shared humanity. Every challenge we encounter can either divide us or bring us closer together. As we unite in our struggles, we must choose the path of empathy and understanding over ignorance and hostility. Let us embrace our differences as strengths, cultivating a community that reflects the rich tapestry of our experiences.”

Based on the speaker's strategies in this excerpt, which rhetorical strategy is primarily employed to foster a sense of unity among the audience?