Interesting Golok for translation

[Atlantia]

It seems to me that if we agree that it is 1945 the year of the beginning of the final struggle for independance and Indonesia's declaration of independence in that year leading to it's recognition by the Dutch in 1949, the choice of verse added to the date seems to suggest that this piece was part of that initial final movement and it's seeming enthusiasm as can be felt in the wording chosen here?

In short, it feels like it's saying to me: "it's 1945 year one of Indonesian Independance and there is no going back."
A declaration of intent but also of seeming expectation of victory (which as we know took another 4 years).