SPARTAN-II Program (Earth-2042)

"You have been called upon to serve. You will be trained - and you will become the best we can make of you. You will be the protectors of the Republic and all her worlds."

- Dr. Cather Halsey

The SPARTAN-II Program was the first proper iteration of the SPARTAN programs, an effort to produce elite Force-sensitive soldiers through mechanical and biological augmentation. Originally envisioned as the second generation of the ORION Project, SPARTAN-II would be the first in the series to meld advanced exoskeleton technology with the soldiers' superior physiques. SPARTAN-IIs experienced the most extensive and invasive physical augmentations out of all the SPARTAN generations, starting augmentation at prepubescent ages increased their physical mass and height to around seven feet by adult age.

Source

 * https://www.halopedia.org/SPARTAN-II_program