Diplomatic recognition is the formal acknowledgment by one state of the sovereignty and legitimacy of another state's government. This recognition can significantly impact international relations, including trade, diplomacy, and alliances, as it signifies a commitment to engage with the recognized state in official matters. In the context of the Constitution of 1889 and the rise of party politics in Japan, diplomatic recognition played a crucial role in shaping Japan's relationships with Western powers and affirming its status as an equal among nations.