Now that the quarterback has recovered from his injury, this week the team will be functioning 'at full strength' again. [=the team will have all its players again]
We are negotiating from a 'position of strength'. [=from a strong position; from a position that gives us an advantage]
He didn't mean to knock you down; he just 'doesn't know his own strength'. [=doesn't realize how strong he really is]
(..) Is there any hope, Gandalf, for Frodo and Sam? There never was much hope. Just a fool's hope. Our enemy is ready. His full strength's gathered. Not only Orcs,... but Men as well. Legions of Haradrim from the south mercenaries from the coast. Come on. This will be the end of Gondor (..)2003 The Lord of the Rings: The Return of the King
(..) His defeat at Helm's Deep showed our enemy one thing. He knows the heir of Elendil has come forth. Men are not as weak as he supposed. There is courage still, strength enough perhaps to challenge him. Sauron fears this. He will not risk the peoples of Middle-earth uniting under one banner. (..)2003 The Lord of the Rings: The Return of the King