Bombardment of Lampisang (27 April – 23 May 1896)

Properties2
tagsevent, dutch, achehnese, colonial, military, aceh-war
aliasesBombardment of Lampisang, Bombardment van Lampisang, Beschieting van Umar's stellingen, Lam-Djamoe battery bombardment

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The Bombardment of Lampisang (27 April – 23 May 1896) was the sustained Dutch artillery bombardment of Teuku Umar’s fortified stellingen in the Lampoeng / Lampisang region — the principal defensive works covering Umar’s residence at Lam-Pisang and his base at Lepong — conducted from the principal Dutch battery at Lam-Djamoe with mortars of 20 c.M., 12 c.M. A., and a 7 c.M. A. veldbatterij, reinforced on 27 April 1896 with 5 officers and 105 men of the fortress artillery, and combined throughout with the naval bombardment of Lepong from the Kroeng-Rababaai. As described in Kruisheer’s ATJEH ‘96, the bombardment was the preparatory phase of the three-day Dutch offensive of 23–25 May 1896: a month-long softening-up of Umar’s positions that, while it did not break the Achehnese defence, fixed the enemy’s attention, degraded his works, and set the conditions for the storming of Tjot Tjako and the capture of Lam-Pisang.

Background

By 27 April 1896 the Regeeringscommissaris, Lt.-Gen. Vetter, had completed the evacuation of the buitenlinie and was preparing the counter-offensive against Teuku Umar. The principal obstacle was Umar’s stelling — a system of fortified works centred on his residence at Lam-Pisang and extending across the low hills of Tjot Tjako, Boekit Seboen, Lam-Tjroeng, Daman, and Lam-Poelau, covering the approaches to his base at Lepong on the western coast. The stelling was too strong to be carried by a coup de main and too extensive to be invested without prior reduction. Vetter resolved to soften it up by a sustained artillery bombardment from the Dutch post at Lam-Djamoe — the closest Dutch position to Umar’s works — and to combine the land bombardment with a naval bombardment of Lepong from the Kroeng-Rababaai (the bay of the Kroeng Raba river).

The principal battery at Lam-Djamoe was equipped with mortars of 20 c.M. (heavy siege mortars), 12 c.M. A. (mountain howitzers), and a 7 c.M. A. field battery — a combination that allowed both high-angle fire against the interior of the bentengs and direct fire against the parapets. On 27 April 1896 the battery was reinforced with 5 officers and 105 lower ranks of the fortress artillery — a deliberate augmentation that brought the firepower of a siege train to what had been, until then, a forward post. The bombardment would last, with intervals, for nearly four weeks.

The Course of the Bombardment

From 27 April 1896 the battery at Lam-Djamoe maintained a steady fire against Umar’s stellingen. The 20 c.M. mortars — heavy bronze pieces throwing a shell of substantial explosive content — were directed against the interior of the works at Lam-Pisang, Tjot Tjako, and Boekit Seboen, where their plunging fire could reach the defenders behind the parapets. The 12 c.M. A. howitzers were used against the bamboedoeri abatis and the earthen walls, attempting to breach the works for assault. The 7 c.M. A. veldbatterij — the lightest of the three calibres — was used for counter-battery fire against Achehnese guns and for harassing fire against the kampong edges. The rate of fire was sustained throughout the four weeks, with periodic intensifications as targets of opportunity presented themselves.

Concurrently, the Dutch Navy conducted the naval demonstration in the Kroeng-Rababaai of 1 May–4 May 1896, threatening Lepong and making Umar’s western base untenable. The naval bombardment of Lepong would be repeated on 25 May, 4 June–5 June, and 8 June–9 June 1896. The combined effect of the land bombardment from Lam-Djamoe and the naval bombardment from the Kroeng-Rababaai was to compress Umar’s freedom of manoeuvre: his stellingen at Lam-Pisang were under continuous fire; his base at Lepong was under intermittent naval fire; and the gap between them — the country of the VI Moekims and the XXII Moekims — was increasingly dominated by Dutch columns.

The Intelligence Picture

The bombardment was, however, more a means of shaping the battlespace than of breaking the enemy. Achehnese bentengs — earthen walls behind bamboo-thorn abatis, with deep shelters (kulu) cut into the interior — were largely proof against anything short of a direct hit by a heavy mortar shell. The defenders could, and did, shelter in their kulu during the bombardment and emerge to man the parapets the moment the infantry assault began. The bombardment’s principal effects were therefore indirect: it forced Umar to keep his warriors under cover, it degraded his communications between the stellingen, it disrupted his supply of food and ammunition, and it imposed a steady drain of casualties from direct hits and from the demoralisation of sustained shellfire. It also allowed the Dutch to gather detailed intelligence on the layout of the stellingen — intelligence that would be crucial to the planning of the three-day offensive.

The Culmination and the Offensive

The bombardment culminated in the third week of May 1896 as Vetter brought his forces into position for the three-day offensive. On 23 May 1896 the Bergcolonne under Van Heutsz marched from Ketapan Doea at 3:30 a.m. to surprise the enemy at Tjot Tjako; on 24 May 1896 the colonne of Kapt. Laceulle marched from Lam-Djamoe to capture Lam-Pisang; on 25 May 1896 the colonne of Stemfoort stormed the stelling Daman–Lam Tjroeng–Lam Poelau. The bombardment had done its work: Umar’s warriors were tired, his communications disrupted, and his works degraded. The storming of the stellingen would still be hard — the Slag bij Tjot Tjako and the bestorming of 25 May were among the hardest-fought actions of the war — but the conditions for success had been set.

Significance

The Bombardment of Lampisang, lasting from 27 April to 23 May 1896, was the longest sustained Dutch artillery preparation of the first semester of 1896 and the prototype of the combined-arms operations that would characterise the rest of the Atjeh-oorlog. It demonstrated the importance of heavy fortress artillery in the reduction of Achehnese stellingen — a lesson that Van Heutsz would later carry forward in his own command — and it established the operational pattern of sustained bombardment followed by infantry assault that would be repeated at the tuchtiging of Lam-Krak and the tuchtiging of the V Moekims Montassik. The bombardment also marked the beginning of the strategic recovery: from 27 April 1896 onward the Dutch were on the offensive, and the defection of Teuku Umar — though not yet undone — was being answered.

See Also

Source

ATJEH ‘96, door A. Kruisheer, Kapitein der Infanterie O.I.L., met 2 kaarten en 4 portretten (Weltevreden: N.V. Boekhandel Visser & Co, 1913). Instituut Kern, Leiden. OCR-filename: 20260715_163243_DLP-89-Atjeh_96_Met_2_kaarten_en4_DOORA_KRUISHEER_Kapiteinder_Infanterie_nemoretriever-ocr-v1_OCR.txt, p. 684.

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