You seem to have one thing backwards Swat, I didn't and don't expect
anyone else to abide by the non expansion pact. Any nation has the ability to change its policy toward anything, including expansion.
As for "immediate need", there is no huge pressure. However, Avalonia is nothing more than a very large, very powerful
business. If a business loses an asset, it will downsize or replace, and Avalonia has chosen the replacement road. Avalonia did, yes, receive 4 trillion (MDE) in compensation (1/2 of which is still in the 100 year process of delivery) to cover Avalonia's investment of time, money, and resources into the territories lost, namely Aemilius and Mitlogica Romagna. This compensation only covered the immediate loss of investment, not the future loss, that being untapped resources, citizens, strategic locations, full chance of military-political support, &c. Those would all be unreasonable variables to charge the territory for, and thus Avalonia must replace the value of the territory in some other way, namely by increasing the size of its far side claim.
If you lost the former Slainte and Aosanian territories, wouldn't it be logical to attempt to make up for the loss? Likewise, Avalonia is endeavoring to compensate for the loss of the Aemilian and Mitlogican territories.
Logic of the brain and the calculator, not emotion of the heart.