|Britannian Radiant Crusade|
|Date||June 5 - July 12, 2017|
|Casus belli||HBE Request|
|Status||No Official End|
|Preceded by|| |
| || |
| 164 nations|
| 57 nations|
The Britannian Radiant Crusade was a conflict that began on June 5, 2017 when The Knights Radiant launched a mass attack on Arrgh at the request of the Holy Britannian Empire with whom they once held a Mutual Non-Chaining Defense and Optional Aggression Pact. After a couple of days, TKR withdrew from the conflict leaving HBE and Arrgh in a continued state of war for over a month later without any talks having occurred between the two alliances. On July 12, the last wars by HBE against Arrgh expired.
Just prior to and during the The Trail of Tiers, Arrgh nations raided inactive HBE nations several times causing deteriorating relations between the two alliances. The raids led hadesflames, Emperor of the Holy Britannian Empire, to repeatedly denounce Arrgh in the international communication forums. hadesflames even personally attacked Shadow, Admiral of Arrgh, during the global war but was overwhelmed by Rose's forces. Prior to and during the conflict HBE had a Mutual Non-Chaining Defense and Optional Aggression Pact with The Knights Radiant. While the treaty was later privately canceled, it is assumed that HBE requested the attack on Arrgh prior to its cancellation, causing TKR to attack when its resources freed up due to the end of the global war.
The Knights Radiant nations began to declare on Arrgh nations with the reason of 'HBE Request' on June 5, 2017. The initial assault saw 30 wars declared on Arrgh by TKR and 4 by HBE. In the day or two prior to the outbreak of war, spy attacks were aimed at Arrgh nuclear weapons and military forces. A one man vassal alliance of The Knights Radiant known as The Final Empire also participated in the conflict and launched 2 wars against Arrgh. In response to the attacks, Arrgh nations launched 16 wars against TKR nations and 5 against HBE nations. The assault also led to Arrgh nations who had built up their military into higher tiers during the Easter Weekend Massacre to begin mass raiding again due to the score drop caused by the destroyed military.
A day or two after the conflict began, TKR informed Arrgh that they would withdraw after the first round of wars expired and would not declare any new wars, leaving HBE to continue the conflict on its own. Following the withdrawal of TKR, the Holy Britannian Empire continued to have skirmishes with Arrgh nations. Throughout the following month and into July, HBE launched another 20 or so wars against while Arrgh retaliated with around 30.