Siege of Zagreb

The Siege of Zagreb, or Attack on Zagreb (hrvatski: Opsada Zagreba, Napad na Zagreb) was a long-lasting siege of the Croatian capital city Zagreb, during 2019-2022, a total of three years (1100 days, including four additional days of fighting). More than 344,000 deaths occured during the siege, with around 97,000 deaths being civilians. Zagreb was attacked with rockets, artillery, grenades, and shells, among other weapons used. Around 391 buildings were completely destroyed, with almost 1,011 buildings being highly damaged. NATO sent reinforcements on the Defense Line a total of 40 times. By May 24th, the Russians lost almost 210,000 soldiers and 600+ tanks and armoured vehicles. During the last week of May, the Russians officially surrendered to the Croatian Army and the Allies, including NATO. This was the largest battle that occured in Croatia's history, and was even more devastating then the previous Battle of Vukovar.

Strength
The Russians commanded until 2020 a higher number of troops, while Croatia was aided by NATO and the Allies. Germany and the United Kingdom, two of Croatia's greatest allies, sent around 150,000 defenders into the city, supplied with larger tons of artillery and mobilized vehicles.

Initial Russian strength: Final Russian strength: Initial Allied strength: Final Allied strength:
 * 500,000 soldiers
 * 1,600 tanks
 * 700 APCs
 * 1,100 aircraft
 * 3,710 artillery pieces
 * 570 SP guns
 * 100 MLR systems
 * 80 attack helicopters
 * 190,000 soldiers
 * 450 tanks
 * 150 APCs
 * 700 aircraft
 * 850 artillery pieces
 * 270 SP guns
 * 20 MLR systems
 * 250,000 soldiers
 * 750 tanks
 * 5,000 APCs
 * 3,000 aircraft
 * 10,800 artillery pieces
 * 1,400 SP guns
 * 1,400 MLR systems
 * 1,950 attack helicopters
 * 800,000 soldiers
 * 2,750 tanks
 * 7,685 APCs
 * 4,800 aircraft
 * 6,800 artillery pieces
 * 2,070 SP guns
 * 2,350 MLR systems