peacemakers

noun
  1. 1

    One who sets the pace in a race, to guide the others.

  2. 2

    A set of nerves which stimulate the heart to beat.

  3. 3

    (hence) A medical implement that is used to stimulate a heart to beat by simulating the action of the natural pacemaker.

noun
  1. 1

    A person who restores peace, especially by settling disputes.

Source: https://en.wiktionary.org/wiki/pacemaker, https://en.wiktionary.org/wiki/peacemaker, https://en.wiktionary.org/wiki/peacemakers