This action Caesar made a ground of complaint against the Sugambri, and besides, he coveted the fame of being the first man to cross the Rhine with an army. He therefore began to bridge the river, B. G. iv. 16-19 . although it was very broad, and at this point in its course especially swollen, rough, and impetuous, and with the trunks and branches of trees which it bore down stream kept smiting and tearing away the supports of his bridge. But Caesar caught up these trunks and branches with bulwarks of great timbers planted across the stream, and having thus bridled and yoked the dashing current, he brought his bridge—sight beyond all credence—to completion in ten days.