Here, we'll have someone from Luria straighten this out:
1.) Phantaria's diet needs to vote to abide the moot's charter and agree to the terms of the treaty of the Maroccidens. Phantaria is the sole realm left from the Terran breakup eligible to be a voting member of the Moot. Terran and Saffalore are not republics, and therefore not valid. Phantaria is legitimate as long as the Diet is responsible for overall policy in Phantaria, since having a monarch (like a prince) is not a disqualifying factor, given the precedence of D'hara and their (illegitimate in the eyes of Luria) King.
2.) Phantaria then needs to formally request to the elders of the moot to be considered a full member. Then, if D'hara doesn't piss in Barca's cheerios (like it did with FR) the Elders will vote on whether or not to accept Phantaria as a full (voting) member of the Moot. If it passes Phantaria gets three elders, one is their ruler, and two are voted upon in some fashion, never paid attention to the part.
3.) D'hara was under no obligation to defend Terran from Phantaria since the Treaty of the Maroccidens no longer covers Terran, under Paragraph C, section v as well as Paragraph G, section i. Terran is ineligible to hold elder offices in the Moot at present, and Phantaria is the only splinter realm of Terran capable, thus it defaults that Barca and D'hara recognize Phantaria as a legitimate state, over Terran.
4.) Nothing in the treaty of the Maroccidens gives any realm claim to Chesney, Paisly or Rettleville. The treaty merely designates them as joint security responsibilities. How Barca and D'hara determine what security is, and how to provide it is entirely up to the D'haran House of Lords and Barcan Senate. If they determine that the region is secured due to the impending threat of a corrupt SA !@#$storm, so be it. If they determine that it can never be safe under Hireshmont, so be it. Once the legislature to take action is written up, well that's the law. Not some real life legal precedent which has ABSOLUTELY no relevance to battlemaster because applying real life law in battlemaster makes as much sense as attempting to apply the Treaty of the Maroccidens to real life. What rl court is going to say "As cited under the Treaty of the Maroccidens, this person must be banned from here, D'hara, Barca, etc.... And must pay a fine of $400 and spend 30 days in jail." Likewise if you try and cite the Locarno Treaties in battlemaster, you should be smacked upside the head. Lightning bolted too, you dirty witch.
Thank you all, I hope you enjoyed Lurian Lessons on advanced Marocciden politics 101.