There is no doubt that movie created by Peter Jackson missed out many important points.

One of the most important aspect is that Peter Jackson did not give credit to who Strider was. He was also THE LEADER of the Rangers, who were a group forest protectors made up of elves, half-elves and Dúnedains.

Aragorn/ Strider can summon the Rangers anytime. It was supposedly one of the rangers that delivered the reforged Narsil to Aragorn before the passage to the "Paths of the Dead" to summon the undead to join him at the battle of Gondor and Not Elrond.

Aragorn/ Strider was a bad, bad mf****!