sentences:  Gustav Adolf arrived to aid the Rheincount and they regrouped by charging with Zacharias Pauli's squadron and Reinhold Anrep's Finnish squadron of 700 cavalry, but most of these were demoralised by the flight of the rearguard and joined within it.Gustav Adolf was at great risk as he and the remaining cavalry were pursued by Polish cossacks.He was almost captured by a cossack but escaped when one of his officers, (according to legend) Erik Soop, shot the attacker and enabled Gustavus to rejoin the rest of the cavalry.