The Disarmament and International Security Committee (DISEC) is the First Committee of the United Nations General Assembly. DISEC deals with transnational security issues, including threats to peace and conventional arms control. The committee’s primary goal is to foster international cooperation, playing a pivotal role in the formation of international treaties regarding arms control and disarmament. Delegates of DISEC will address threats to the freedom of civilians and cooperate to maintain peace and order. 

DISEC is a General Assembly that is open to all delegates, regardless of experience. Both committee topics use Regular Rules of Procedure. Although position papers are not mandatory for this committee, they are required in order to be eligible for an award.

Questions, inquiries, and position papers for this committee can be emailed to disec@cahsmun.org.

Topic A: Use of Autonomous Weaponry

Backgrounder a

Topic B: Security of Critical Energy Infrastructure

Backgrounder b

Evangeline Mah | Director

Evangeline, a junior at Crofton House School, is ecstatic to serve as the Director of DISEC at CAHSMUN 2026. Ever since discovering Model UN in grade eight, she has grown to cherish the long committee sessions, the packed elevators, and the sleepless nights (with the help of overindulging on Starbucks). Her Model UN journey has been nothing short of long-lasting memories, new friendships, and laughter. Beyond Model UN, Evangeline can be found inhaling Big Way Hotpot, brawling with her friends, skiing, and listening to her spotify playlist. She hopes that this year’s iteration of CAHSMUN will be an unforgettable experience for both new and returning delegates, with each delegate leaving with lasting memories and a great weekend full of endless debate.

Ava Manyal | Chair

A Junior at York House School, Ava is beyond excited to serve as a chair for the DISEC committee at CAHSMUN 2026. Since starting MUN two years ago, it’s become the highlight of her high school experience. From sprinting up stairs to get to her room during breaks to the long lasting connections formed in the heat of debate, Ava has truly appreciated her time spent participating in MUN. She’s grateful for the supportive Dais teams she’s had in the past, and hopes to create the same warm and welcoming space for all members of the DISEC committee. Outside of MUN, Ava enjoys listening to history podcasts or catching up on the latest episode of Love Island. She’s looking forward to meeting the DISEC delegates and hopes everyone is just as excited for an unforgettable weekend of debate and diplomacy!

Jenny Choi | Chair

Currently a junior at Crofton House School, Jenny is delighted to serve as your chair of the Disarmament and International Security Committee for CAHSMUN 2026. Since the beginning of her Model UN journey in grade 9, she has developed a love for all the moments of conferences, ranging from meaningful debates to hilarious speeches and forming new connections. Having experienced being a shyer delegate when she first began, Jenny strives to create a supportive and welcoming environment for new and experienced delegates alike at this conference. Outside of the committee room, Jenny can be found probably downtown buying everything in sight, or on the hunt for new matcha places in Vancouver. Jenny welcomes delegates for another memorable CAHSMUN experience in the spring, and she is beyond excited to see all the thought-provoking ideas and passion that delegates will bring!