Why? Simply because there are more eyes, more hands , more firepower, and in areas where you can't protect yourself, your comrade can do it for you. The range of where your eyes can't cover, your friend will.
Couldn't agree more with you on this one. Foresight, Insight and Oversight, meticulously written and explained here by you, @danielwong! Thank you for another great write-up! Gonna resteem this.
Thanks @heartscally. Appreciate the resteem and upvote :)