Maurice's campaign thumb|Prince Maurice memorial in Nieuwpoort For this operation, by 21 June Maurice had collected an army of twelve infantry regiments and 25 troops of cavalry: some 12,000 Foot and 2,000 Horse. The following day he crossed the Scheldt Estuary in a multitude of small vessels and moved to Ostend, his base of operations; there he left a half regiment and four troops to reinforce the garrison and, on 30 June, started for Nieuwpoort.
Maurice's campaign thumb|Prince Maurice memorial in Nieuwpoort For this operation, by 21 June Maurice had col,lected an army of twelve infantry regiments and 25 troops of cavalry: some 12,000 Foot and 2,000 Horse. The following day he crossed the Scheldt Estuary in a multitude of small vessels and moved to Ostend his base of operations; there he left a half regiment and four troops to reinforce the garrison and, on 30 June, started for Nieuwpoort.