The Land Forces International Land Defence Expo in Melbourne has drawn significant controversy, with up to 25,000 anti-war protesters expected to disrupt the event. The expo, showcasing military technology from over 800 domestic and international companies, has led to unprecedented security measures, including a 'ring of steel' and extensive police presence. Authorities have diverted hundreds of officers from regional areas and granted them increased search and arrest powers under anti-terror legislation. Protests began early, with activists vandalizing hotels and blocking traffic, fueled partly by opposition to Australia's arms sales to Israel amidst the Gaza conflict. Prominent figures, including Greens MP Gabrielle de Vietri, have joined the protests, calling the event inappropriate. The cost of the police operation is estimated at $15 million, reflecting its scale and the contentious nature of the expo.