The Ustashe "powers" (Britain) have threatened Serbia over and over again. They also have assassinated unarmed civilians in their town, claiming a "lockdown" which is obviously false.

Due to
1. murdering civilians
2. and threatening Serbia

The town of Beograd will declare war on Britain at 8:30 PM EDT on Monday, March 11th, 2019.
If the British are not online at this time, we will consider this a full surrender.