What happened September 1991 AD in Croatia

This move followed months of standoff for JNA positions in Dalmatia and elsewhere now known as the Battle of the barracks.

In September 1991, Croatian National Guard (ZNG) organised armed incursions across the Croatian border into Bosnia. ZNG opened mortar fire on Bosanska Dubica on 13 September 1991, and raided Bosanski Brod on 15 September 1991.

It also coincided with the end of Operation Coast-91, in which the JNA failed to occupy the coastline in an attempt to cut off Dalmatia's access to the rest of Croatia.

On 20 September 1991, the JNA transferred troops to the front at Vukovar via the Višegrad region of northeastern Bosnia. In response, local Croats and Bosniaks set up barricades and machine-gun posts. They halted a column of 60 JNA tanks but were dispersed by force the following day. More than 1,000 people had to flee the area. This action, nearly seven months before the start of the Bosnian War, caused the first casualties of the Yugoslav Wars in Bosnia.