Yes, you should focus on thoroughly understanding the historical context and evolving dynamics of questions related to international relations, diplomacy, and global challenges in PSIR.

Importance of understanding historical context:
Understanding the historical context is crucial in analyzing international relations and diplomacy. History provides valuable insights into the origins, development, and patterns of interactions between nations. It helps in understanding the underlying causes and consequences of various events and actions. By studying historical context, you can gain a deeper understanding of the dynamics at play in the international arena.

Key reasons to focus on understanding historical context:
1. Identifying recurring patterns: History often repeats itself, and by studying the historical context, you can identify recurring patterns in international relations. This enables you to make informed predictions and formulate effective policies.

2. Understanding power dynamics: Historical context helps in understanding the power dynamics between nations. It sheds light on the rise and fall of empires, shifts in alliances, and the balance of power. This knowledge is essential for analyzing contemporary international relations and making strategic decisions.

3. Examining the role of diplomacy: Diplomacy plays a crucial role in international relations. By studying historical examples, you can understand the strategies, tactics, and outcomes of diplomatic efforts. This knowledge is valuable in analyzing ongoing diplomatic negotiations and conflicts.

4. Assessing the impact of global challenges: Global challenges such as climate change, terrorism, and economic crises have historical roots. Understanding the historical context allows you to assess the long-term impact of these challenges and develop effective solutions.

Conclusion:
Thoroughly understanding the historical context and evolving dynamics of questions related to international relations, diplomacy, and global challenges is essential for students of Political Science and International Relations. It provides a solid foundation for analyzing contemporary issues and making informed decisions. By studying history, you can gain valuable insights into the complexities of the global system and contribute to the field of international relations.