"That was pretty shocking when you see the amount of military opposition."
Former New Zealand Prime Minister Helen Clark's work with the United Nations Development Programme served as inspiration for many elements of Nisha's speech.
"A good speech is something where you make a lot of strong statements, but they are supported by evidence."
Nisha had one thing to say to people who said she was too young to be talking on such complex topics.
"It's not like the older you get you're definitely going to get smarter. There are just as many unintelligent, uneducated older people. Because you're younger you might not know about it, fine, but that doesn't mean you can't learn about it."
This is the sixth time in a decade that Hillcrest has won the Waikato championship.
Nisha will go to the UN Speech Competition national finals as the Waikato representative in May and will be National MP for Hamilton East David Bennett's representative in the Youth Parliament in July.