A communication management server computer that manages alliances is programmed or configured to monitor a target strength associated with a user account, which can be an alliance strength of an alliance with an ally of the user account or a relationship strength of a relationship with a contact of the user account. The server is programmed to further take a remedial measure when the monitored target strength deteriorates significantly. The server is programmed to determine the remedial measure based on alliance data, including the set of digital communications shared by the user account or another user account for exploration of relationships. The remedial measure can lead to actions taken by a specific user account that is connected to the user account and the ally or the contact through one or more alliances or relationships.