A child's graduation is one of the important milestones in a parent's life. It is the culmination of the hard work both by the parents and the child.

A U.S. Marine veteran, however, may not be able to see his daughter graduate after officials of a public school in Maryland decided to ban him from the campus for questioning how its students are supposedly being subjected to Islamic "indoctrination."

John Kevin Wood, the soldier in this controversy, has been banned from his daughter's school, the Charles County Public Schools in La Plata, Maryland since 2014 after he opposed the way students were being asked to "write out and confess the Shahada, the Islamic profession of faith."

Because he wanted to witness his child's graduation, Wood, with the help of the Thomas More Law Center, filed a motion for a preliminary injunction that would overturn the school's ban.

In his motion, Wood said the school has already deprived him of meaningful involvement in the direction of his daughter's education due to the fact that the ban has prevented him from attending meetings involving her child's schooling.

According to WND.com, Wood also charged that the school imposed a ban on him "without any hearing or opportunity to defend himself because he brought to light the school's unconstitutional practices."

The complainant also maintained that the school was subjecting his daughter to "Islamic indoctrination and propaganda in her high school world history class."

He also maintained that the school's "curriculum, practices, policies, actions, procedures, and customs promote the Islamic faith by requiring students to profess the five pillars of Islam."

By doing so, the school has also, according to the complainant, deprived him of his right to practice and defend his Christian belief.

"Defendants have treated plantiff's Christian beliefs and heritage with deliberate indifference, and have been hostile toward C.W. [the student] and her family," the complaint stated.

Wood further accused his daughter's school of depriving him the "right to be free from a public school's promotion of certain religious beliefs, their fundamental right to be able to speak freely and raise concerns about religion being taught in our public schools without retaliation, and their fundamental right to be free from unjust discrimination against their Christian heritage."