Homsec is an exhibition held in Madrid for the defence and security sectors, attended by more than 15,000 visitors from 40 countries and 195 exhibitors.
Some locals have objected to the showcase. The city council announced, prior to the event, that it would not be among the sponsors of the show.
In turn, the anti-militarism group Desarma Madrid, which brings together various organisations and activists, took part in a non-violent demonstration against the event. As a result of their actions, 19 demonstrators were detained by the police.