Sentence:  Their writings <WSD>assume</WSD> more than dramatic or patriotic interest because of their conviction that the struggle in which they were involved was neither selfish nor parochial but , rather , as Washington in his last wartime circular reminded his fellow countrymen , that `` with our fate will the destiny of unborn millions be involved '' . 
Meaning of the word marked with <WSD> tags:  take on a certain form, attribute, or aspect