Paraguay had a population only a third as large as that of Bolivia ( 880,000 vs. 2,150,000 ) .
Paraguay 's innovative style of fighting , centered on rapid marches and flanking encirclements , compared to Bolivia 's more conventional strategy , Paraguay it to take the upper hand .
Paraguay had a population only a third as large as that of Bolivia ( 880,000 vs. 2,150,000 ) , but its innovative style of fighting , centered on rapid marches and flanking encirclements , compared to Bolivia 's more conventional strategy , enabled it to take the upper hand .