Final answer:
The Geats anticipate trouble from the Swedes due to the Swedes' desire for revenge over past conflicts, reflecting a historical pattern of conflict rooted in desires for territory, wealth, and autonomy.
Step-by-step explanation:
The Geats expect trouble from the Swedes because the Swedes are seeking revenge for previous conflicts. Historically, conflicts and warfare often stem from a desire to protect or gain territory, and wealth, and to ensure liberty and autonomy.
This pattern can be seen in the interactions between ancient societies, such as the Vikings, and among European nations before the World Wars. For the Geats, the expectation of trouble is likely a result of past confrontations which may have left the Swedes feeling aggrieved and desirous of retribution.