The phrase "strong armor" means having protection or being mentally and emotionally strong to face challenges and difficulties in life. Full definition
William Booth, founder of the Salvation Army, used the military metaphor with great effect; slum dwellers of nineteenth - century London found the discipline of a soldier to be strong armor against the pull of a former life. (religion-online.org)
These items can be removed at any point in the game if the player so chooses and can later be replaced by what looks like stronger armor for Link to defend himself against enemy blows. (provengamer.com)
The Anti-Armor Pistol fires a special penetrative shell and was manufactured to tackle hostile forces with much stronger armor. (elder-geek.com)