pacify

verb3

1. •
   To mollify, placate or soothe (someone or something).

   • Tell me that you'll call me / Just as soon as you get home / To pacify my heart while I'm alone / I don't like being alone — 1977
2. •
   To appease (someone).

   • Watt decided in the end that an examination of Erskine's room was essential, if his mind was to be pacified, in this connexion. — 1953
3. •
   To bring peace to (a place or situation), by ending (or suppressing) war, fighting, violence, anger or agitation.

   • Their orders were to pacify the province by destroying resistance.