Mezue ahịrịokwu na-esonụ: Iwu nke Nieuwe Waterweg na 1863 kara akara mmalite nke uto nke Port nke Rotterdam. Na 14 Mee 1940, n'oge Agha Worldwa nke Abụọ, etiti Rotterdam bibiri site na bọmbụ ndị Germany. Nchịkwa nke ndị Germany na-esochi Netherlands rụpụtara ihe mgbochi ndị Juu, e jidekwara ọtụtụ ndị òtù ndị Dutch na-eguzogide ma gbuo ha na Waalsdorpervlakte. N'otu oge ahụ, e wuru Atlantikwall n'akụkụ ụsọ oké osimiri ahụ. Mgbe Agha Ụwa nke Abụọ gasịrị, na 1953, ndịda nke South Holland bụ nke oké ifufe ahụ metụtara.
Iju Mmiri North Sea, nke gburu ndị South Hollanders 677. Mgbe nke a gasịrị, gọọmentị Dutch kpebiri maka owuwu nke Delta Works, nke bịara na njedebe na mmecha nke Maeslantkering na 1997.