The event was born in Barcelona in 2012 but it has moved to Madrid in 2016, making the 2019 edition the 8th 7th [edit: there was no 2018 edition] one in its history, which was held on March, 16th.
This is a companion discussion topic for the original entry at https://www.helisimmer.com/articles/after-action-review-airsim-madrid-2019/