The school staff instructor for Montsaye's CCF, Mark Chattaway, said the cadets planted the trees as part of their community activities.
Mr Chattaway said: "This is the first in a new tradition in Montsaye Combined Cadet Force where each year, with the intake of new recruits, the cadets will be taking part in either local charities or community support issues.
"This year the cadets chose to 'Declare War on Climate Change'."
The cadets were due to plant the trees on November 14, but this had to be postponed due to bad weather.
The group were able to plant the trees on Thursday, November 28 at 2pm in Columbus Crescent, Rothwell.
Mr Chattaway said: "The tree planting was supported by Kettering Borough Council, who donated the trees and prepared the land for us ready to plant the trees.
"Not only was it a great team building exercise, it also gave the cadets a great sense of pride in themselves as well as respect for the environment."
CCF is a youth organisation sponsored by the ministry of defence and it runs in around 500 schools nationwide for children aged 12-18.
The organisation aims to encourage those with an interest in the armed forces to consider a career in the military, but it also acts as a club within schools and encourages leadership qualities through activities.
Mr Chattaway said activities like this would be repeated by the group in the near future.
He added: "On behalf of all the cadets and Montsaye academy I would like to thank KBC donating the trees and for all their help."