Under the protection of a heavy cannonade from San Marcial and the neighbourhood, the divisions on the left forded the Lower Bidassoa at several points almost before the French had fired a shot, and, turning the enemy out of his positions, crossed the frontier into France. At the same time, the Light Division advancing on Vera, and thence up the mountain-slopes, carried position after position with astounding impetuosity; while, farther away on the right, the 7th Division and others guarded the Echallar pass and various roads and tracks through the mountains. Desultory fighting went on upon the crests of the Pyrenees during the next two days, after which Wellington called a halt, and from his headquarters at Vera reorganised the commands of his army. Hill was given the right, from Roncesvalles to the Bastan; Beresford the centre, which included Echallar, where the 7th Division was posted; and Hope the left, from the Mandale mountain to the sea. Tents were brought up, and the troops encamped on their several positions, eagerly awaiting the order to move forward; but Wellington had not yet decided finally whether to invade France or to move back into Spain and carry the war into Catalonia. A month was thus spent, in the most inclement weather, on the summits of the bleak Pyrenees, and the allied army suffered great hardships, some of the posts being at times snowed up and cut off from provisions. Fortunately they were provided with tents--though they were a cold comfort; nevertheless, the shelter which they afforded was certainly preferable to bivouacs among the rocks.