Simplify the following text for a Grade 10 native English-speaking person.
Original: Since the end of the Nagorno-Karabakh War , Armenia has committed many elements of the army to help bolster the defense and defend the unrecognized Republic of Nagorno-Karabakh from a possible renewal of hostilities with neighboring Azerbaijan .
Simplified: Since the end of the Nagorno-Karabakh War , Armenia has made the army boost the defense and help defend Nagorno-Karabakh from a possible new attack by neighboring Azerbaijan .