Protesters of a military weapons expo occupied the Brisbane offices of senior ministers Wednesday afternoon.

Protesters stormed the offices of Peter Dutton and Anastacia Palaszscuk to oppose both politicians' support for the Land Forces Expo, which is due to be held at the Brisbane Convention Centre in June.

The arms dealers’ expo is due to bring eight of the world’s top ten arms manufacturers together to showcase weapons and technology for the Australian and Indo-Asia-Pacific armies.