The French army was arranged in two lines of infantry in the center, squadrons of cavalry on each wing, and a thin line of artillery at the front. The Spanish army was similarly positioned but with the center infantry in their traditional "tercio" squares, with some 8,000 highly trained Spanish in front and mercenary infantry behind them. The two armies exchanged fire in the afternoon of 18 May, but the full battle did not occur until the following day.
The French army was arranged in two lines of infantry in the center squadrons of cavalry on each wing and a thin line of artillery at the front The Spanish army was similarly positioned but with the center infantry in their traditional "tercio" squares with some 8000 highly trained Spanish in front and mercenary infantry behind them The two armies exchanged fire in the afternoon of 18 May but the full battle did not occur until the following day