I vividly remember the old Army slogan: Be all that you can be. The Army slogan then changed to: An Army Of One.
The Army Of One slogan never sat well with me. Sure, it sounds great to someone who wants to be free and on their own. They can be their own army. They can go after the enemy as the Lone Ranger.
But is an Army Of One truly effective? One man, going out on his own (other than John Wick or Bryan Mills), is not going to be very effective.
He will run into situations he is poorly suited for. He will look around and find no one to help him. In the end, he will flounder because he was on his own.