A "fraternal bond" refers to a strong and caring relationship between two people, usually male friends or brothers, characterized by support, loyalty, and a sense of brotherhood. Full definition
Similar and related words and phrases are presented below.
He wants to heal their fractured fraternal bonds. (ericdsnider.com)
The Franco brothers both show their strong fraternal bond through their characters. (donttalkaboutmovies.net)
Connelly shows how this path toward rediscovering the fraternal bonds that link Israel and the Church was anything but straightforward. (firstthings.com)