The final region under scrutiny, the West Philippine Sea, held an exceptional significance due to its unique geopolitical context.
The time frame of the survey, spanning from 1920 to 1923, was a period when the United Nations, as we know it today, did not exist. Consequently, the precise boundaries of international waters were yet to be established, making the West Philippine Sea a contested territory.
Alfonso recognized the importance of securing this region, not only for its potential oil reserves but also for asserting the Philippines' sovereignty over these waters.
The West Philippine Sea had been a subject of dispute with neighboring nations, and the outcome of this exploration could significantly impact the nation's future.
To ensure a comprehensive understanding of the situation, a joint expedition was organized.
