Having a brother is equal to have a perfect best friend since childhood and many different kinds of memories are related to this relation like childhood memories, teenage memories, and many more unforgettable memories. Since this relation is grown under the same roof the understanding between with a brother is perfect.
The fights between them, sharing anything, helping each other and always being there for protecting each other and many more memories are a blessing for oneself.
On their happy and joyous occasion, we must cheer them up with the best-suited words. So we give suggestions in the best words to wish them a happy marriage anniversary.