vadearon: they crossed a river. Usually a river which can be crossed walking,, which is not the case with Uruguay river.

valiente: brave

varios: several

Velazco: governor of Asunción (Republic of Paraguay)

vencido: defeated

vestigio: trace

vez: time. Otra vez: once again

vida: life

volado: blown

volviendo: returning

volviéndose: becoming