For several days preceding the 23d of November, Filipinos moving to the south through the lines reported that large enemy forces were massing on the opposite side of the Palanas River and emplacing field guns. Artillery observers on Shoestring Ridge could see the Japanese constructing trenches, machine gun pits, and other installations on the opposite ridge. The Japanese forces consisted of the 1st and 2d Battalions, 13th Independent Infantry Regiment, and two battalions from the 11th and 12th Independent Infantry Regiments.[14] Colonel Saito was ordered to hold back the American advance, which threatened to cut off a trail the Japanese had been building at Albuera over the mountains to Burauen.
On 23 November the defenses of the 32d Infantry were stretched very thin. Because of the great distance involved it was not possible to have a continuous front line extending from the sea to the mountains, and therefore some passages of approach had to be left open to the enemy. Only the longest and most difficult were undefended.[15] The main defensive sector of the 32d Infantry, just south of the Palanas River, was astride the highway and on that part of the ridge which overlooked the regiment’s artillery and command post installations. The defensive sector of Companies F and G was 1,500 yards in width. Company F occupied the flat, marshy land between the sea and the hills to the east. The men built barricades of dirt and sandbags at intervals of seventy-five yards and mined the area in front of them. Company E and guerrillas of Companies F and G, 94th Philippine Infantry, which were attached to the 2d Battalion, were on a ridge that extended to Hill 918. Some guerrillas were also outposted between Companies G and E. Regimental headquarters was at Baybay.[16] “The main strength of the line was American guts and fighting spirit.”[17] During the night, Battery B of the 11th 155-mm. Gun Battalion had moved in and was in position at 0800 to start firing. The battery was so well camouflaged that during the ensuing engagement it was never discovered by the enemy. The regiment now had in support two batteries of 105-mm. howitzers and one of 155-mm. guns.
Battle of Shoestring Ridge
The Battle Begins
At about 1830 on 23 November, the 26th Division opened up the long-expected attack.[18] The signal for the commencement of hostilities was an artillery concentration, the first rounds of which fell in the area of Battery A, 49th Field Artillery Battalion. The next rounds were scattered. Enemy mortars joined the artillery and concentrated their fire on the front lines of the 32d Infantry. Counterbattery fire of the 105-mm. howitzers from Battery B of the 49th Field Artillery temporarily silenced the Japanese fire. At 2000 the enemy artillery and mortars again opened up against the front lines of the 32d Infantry and cut all communications between the 2d Battalion and the regimental headquarters at Baybay. Communications were later re-established by relay from the 3d Battalion at Caridad.
At 2100 the Japanese infantry launched a well-planned attack, supported by artillery, mortars, and machine guns, against the lines of Company E. Although the company retaliated with all weapons at its command, the Japanese continued to come on, despite heavy casualties, through the covered draws, high cogon grass, and bamboo thickets. The guerrilla outpost between Companies G and E withdrew when the Japanese attacked Company E. The enemy force, which consisted of two reinforced rifle companies from the 13th Independent Infantry Regiment, seized portions of the ridge and dug in.
Colonel Nelson, the commander of the 2d Battalion, ordered Capt. John J. Young, commanding officer of Company E, to withdraw his troops. Since the Japanese had penetrated the lines and were digging in, the withdrawal was difficult. At about 2200, when Capt. Roy F. Dixon, commanding officer of Company G, received word that Company E was to withdraw to a position behind Company L and thus leave the right flank of Company G exposed, he ordered the right platoon leader to move his right from a position in front of the ridge to one on the ridge facing east, refusing this flank.[19] The two right squads moved back and secured the right of Company G.
At dawn on 24 November Colonel Nelson re-formed the 2d Battalion. A patrol from Company F went to the Palanas River and found no enemy troops. At 0800 three companies moved to the east toward Hill 918. The troops succeeded in pushing back a Japanese force that had penetrated south of the Palanas River and east of Hill 918. Colonel Finn ordered Company K to move up from Caridad, and he attached it to the 2d Battalion.
Battery C of the 57th 105-mm. Howitzer Battalion, which had just arrived, was placed on the left, south of the Bucan River.[20] By 1800 the troops had regained some of the ground lost the previous night and occupied a perimeter approximately 2,000 yards long and less than 1,500 yards deep.