In a letter from Dalhousie to Wellington, regarding the 7th division in the end of August, 1813, and specifically the Attack at Zaggarmurdi by the 6th brigade, writes the following:

"I deeply regret the loss of these two brigades in officers and men. The 1st brigade has to sustain the attack of two divisions of the enemy on a strong and wooded hill; the loss there was unavoidable: that of Le Cor [several officers and 70 men], I must confess, was owing in some degree to the too forward gallantry of the Portuguese troops".

As I am not too familiar with the English of the time, what exactly means "too forward gallantry" in the context of a report?