Identifying Rhetorical Strategy in a Speech

In the following excerpt from a speech, the speaker uses a rhetorical strategy to emphasize unity in the face of adversity:

'Together, we can face any challenge that comes our way, united in our mission and fortified by our shared values. As one community, we are stronger, and together we will overcome all obstacles that threaten our progress.'

Which rhetorical strategy is primarily being employed in this passage?