Subject Agreement
Subject Agreement (conquest) in the Stellaris encyclopedia: Subject Agreements define the terms of subjugation between an overlord and their vassal, determining levels of autonomy, resource contributions, and military obligations. These agreements can be customized to create anything from tightly controlled subject…
Subject Agreement in the game's words
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Subject Agreements define the terms of subjugation between an overlord and their vassal, determining levels of autonomy, resource contributions, and military obligations. These agreements can be customized to create anything from tightly controlled subject states to semi-independent allies.
Subject Agreements can be negotiated in the Agreements tab of the 
Contacts View.
Entries that mention Subject Agreement
More in Conquest
Source: common/game_concepts (concept_subject_agreement, also concept_subject_agreements) and localisation/english, Stellaris Cygnus v4.5.2 (9776).