Complex sentence: Because of the war, in which the Netherlands remained neutral, the European public did not see the V.2 until one of the first post-war air shows, the Eerste Luchtverkeer Tentoonstellung (First Air Traffic) Show held in Amsterdam in August 1919.
Split into simpler sentences: Because of the war, in which the Netherlands remained neutral, the European public did not see the V.2 until one of the first post-war air shows. This was the Eerste Luchtverkeer Tentoonstellung (First Air Traffic) Show, held in Amsterdam in August 1919.