The Wanshan Archipelago Campaign () was a campaign fought between nationalist and communist forces for the control of Wanshan Archipelago (Wanshan Qundao, 万山群岛), and resulted in communist victory. The archipelago consists of 48 islands strategically located at the mouth of the Pearl River, a chokepoint on the communication lines to Hong Kong and Macau. The largest island is the Laurel Mountain (Guishan, 桂山) Island, which was formerly known as Trash Tail (Lajiwei, 垃圾尾) Island. Other major islands include Outer Linding (Wailinding, 外伶仃) Island, Dong'ao (东澳) Island, Tri-gate (Sanmen, 三门) Island, Greater Ten-thousand Mountain (Da Wanshan, 大万山) Island, Lesser Ten-thousand Mountain (Xiao Wanshan, 小万山) Island, Burden Pole (Dangan, 担杆) Islands, and Jianpeng (佳蓬) Islands.
Prelude After Hainan Island had fallen into the communist hands, the nationalist 3rd Fleet withdrew to Wanshan Archipelago and together with the various nationalist units as the local garrison, the nationalists planned to blockade the mouth of the Pearl River and cutting off the maritime links between the mainland and Hong Kong and Macau. The nationalist naval commander-in-chief Gui Yongqing (桂永清) organized the Wanshan Defense Command, and named nationalist commander-in-chief of the 3rd Fleet Qi Hongzhang (齊鴻章) as the commander, who set up his headquarters on board the frigate Taihe (太和), the largest nationalist warship among more than three dozen nationalist naval vessels in the region, and the flagship of the nationalist 3rd Fleet. In response, the communist force decided to take the archipelago and eliminate the threat and crush the nationalist blockade of the mouth of the Pearl River. The communist deputy corps commander Hong Xuezhi (洪学智) was named as the commander of the Riverine Defense Force of the Cantonese Military Region to be in charge of the incoming operation, and the commander of force began to mass at Zhongshan on May 8, 1950, after a joint command headquarters was set up.
Order of battle Nationalist order of battle Around 4,000, including: 1 Marine regiment 1 battalion from the 208th Division of the Youth Army 6 infantry companies of various units Units of the Cantonese Assault Army The 3rd Fleet ROCS Zhong Hai (中海艦) ROCS Ying Kou (營口艦) ROCS Hsin Yang(信陽艦) ROCS Tai He (太和艦) ROCS Yong Kang (永康艦) ROCS Yong Ding (永定艦) The 2nd Patrol Boat Fleet Gunboat Gao Yao (高要砲艇) 120 tons Gunboat Yue Xiu (粵秀砲艇) Gunboat Jiang Xiu (江秀砲艇) - possible later name of Yue Xiu (280 tons) Gunboat Jiang Ding (江定砲艇) 280 tons Gunboat Chang Jiang (長江砲艇) 100 tons Gunboat Zhi Ping (治平砲艇) 25 tons Gunboat 25 (砲25) 40 tons Gunboat 26 (砲26) 86 tons Gunboat 35 (砲35) 25 tons Gunboat 38 (砲38) 25 tons Patrol boat 29 (巡29) 10 tons Patrol boat 31 (巡31) 10 tons Patrol boat 32 (巡32) 10 tons Patrol boat 33 (巡33) 10 tons Patrol boat 34 (巡34) 10 tons Patrol boat 35 (巡35) 10 tons Patrol boat 84 (巡84) 10 tons Local guerilla gunboats
Communist order of battle Around 10,000 total, including: 2 regiments from the 131st Division of the 44th Army 1 Artillery battalion of the 132nd Division 1 Artillery company of the 130th Division 1 Artillery company of the South-central Military Region with 100 mm long range cannons 1 Artillery company from the 50th Army with recoilless guns 1 Artillery regiment of the Pearl River sub-Military Region Riverine Defense Force of the Cantonese Military Region (naval force) 5 gunboats (including three respectively named Liberation, Vanguard, and Struggle) 1 Landing ship 10 Landing craft 8 Transports
First stage The communist task force sailed to Wanshan Archipelago at the dawn of May 25, 1950. Shortly before dawn, the advance guard of the communist force in charge of fire support reached the nationalist anchorage at the Laurel Mountain (Guishan, 桂山) Island. The communist gunboat Liberation, a former nationalist gunboat named Dancing Phoenix defected to the communist side commanded by its former nationalist commander, Captain Lin Wenhu (林文虎), a brilliant naval officer, launched a surprise attack on the nationalist naval force at the anchorage under the cover of darkness. Fully aware that his 25-ton gunboat was completely incapable of sinking its large opponents each displaced over a thousand tons, Captain Lin skillfully ordered his crew to concentrate fire on the superstructures of larger nationalist ships. Nearly every nationalist large warship in the anchorage had its bridge struck, and the flagship, the frigate Taihe suffered the most: nearly everyone on the bridge was either killed or wounded, and Qi Hongzhang (齐鸿章), the nationalist commander-in-chief was severely wounded himself. With the commander-in-chief severely wounded and most of his staff killed, the nationalist command in charge of both land and naval defense was thus effectively paralyzed. The confined space of the anchorage severely limited the maneuverability of the nationalist warships for fearing collision in the darkness, and the communist gunboat was able to utilizing the blind spots of the larger nationalist naval guns by fighting at extremely close quarter when engaging the larger nationalist ships after sinking a nationalist gunboat. In the meantime, two other communist gunboats, Vanguard and Struggle, managed to sink two nationalist gunboats east of Ox Head (Niutou, 牛头) Island, while two battalions of the communist landing force took Green Islet (Qing Zhou, 青洲) and Triangle (Sanjiao, 三角) Island.
After the sunrise, the nationalist fleet discovered that there was only a single small communist gunboat fighting them, and as the enraged nationalist sailors attempted to avenge the deaths of their comrades-in-arms, every nationalist naval vessel available joined the chase of the communist 25-ton gunboat Liberation. However, unbeknown to the nationalist fleet, it was drawn to a temporary but carefully and skillfully designed trap devised by the communist gunboat captain, who was luring his opponent away from the islands, thus opening the way for the communist landing force. Once the nationalist fleet realized its mistake, it was too late: although the nationalist fleet managed to severely damage the communist landing ship Guishan (桂山) in the chase, the communist landing ship nonetheless successfully beached itself and unloaded all of the landing force it carried.
The nationalist fleet was soon faced another dilemma: continue fighting the two communist naval vessels or saving the dying sailors, including the severely wounded commander-in-chief, who was out of consciousness by already this time. The loyal subordinates of the nationalist commander-in-chief chose not to let their commanding officer to die like many other wounded sailors, and speed away from the battlefield to seek better medical help in attempting to save those who were dying. Fearing additional communist naval units that may launch another round of attack, all other nationalist naval vessels retreated from the battlefield around an hour after the first shot was fired, protecting the wounded flagship from possible enemy attacks, thus enabling the 25-ton communist gunboat Liberation to safely return to its mainland base in a hero's welcome, but nationalist naval force nonetheless succeeded in killing the communist deputy political commissar of the flotilla on board the gunboat.
Unfortunately for the nationalists, due to the chaos of the battle and the damage to the communication gears on board most of its naval vessels, the decision for the naval units to retreat from the battlefield to save the dying sailors and commanders was not relayed to nationalist force on the island, where the defenders interpreted such retreat as fleeing and abandoning them, and the morale of the land force collapsed as a result. In the meantime, the communist troops landed on the island believed the same and their morale was drastically boosted and their pressure on the defenders intensified. The demoralized nationalist defenders had managed to hold on their positions until the nightfall, and then asked and was allowed retreated from the island under the cover of darkness.
Once the main anchorage of the Wanshan Archipelago, the Laurel Mountain (Guishan, 桂山) Island fell into the communist hands, many other islands fell in a domino effect. From May 25, 1950, thru May 28, 1950, Ox Head (Niutou, 牛头) island, Spider Islet (Zhi Zhou, 蜘洲), Dalu (大碌), Large Head Islet (Datou Zhou, 大头洲) and other small islets fell into the communist hands.
Nationalist account:
According to nationalist accounts from multiple commanders and captains including commander Qi Hongzhan of the third fleet, the events of the battle occurred differently. On the early morning of 25 May, the nationalist sentry gunboats 25 and 26 had made first contact with the communist assault force consisting of 5 gunboats and the landing craft Guishan on the northwest coast of Qingzhou island. Leading this force was the gunboat Vangaurd, the former sister of the nationalist gunboat Gaoyao, who was also in the area. Because it was dark gunboat 26 did not identify or engage until it was too late and soon she came under fire and as a result was set on fire. As the communist gunboats engaged gunboats 25 and 26 the landing craft Guishan and the gunboat Liberation split from the main force and headed towards the nationalist warships docked at Nanshanwei. The Guishan headed towards Nanshanwei and the Liberation towards the channel between Qingzhou island and Nanshanwei.
Upon seeing the skirmish where gunboats 25 and 26 were stationed, Commander Qi Hongzhan gave orders at 5:40 A.M. to his fleet to engage the enemy. Taihe and Zhong Hai intercepted the Guishan, The second patrol fleet gunboats led by Cao Yuanzhong and the flagship Yue Xiu headed towards gunboat 25 and 26's area northeast of Qingzhou island to engage with the communist gunboats harassing them. A few gunboats stayed back to defend Nanshanwei, including gunboats 38 and Zhiping which engaged the gunboat Liberation as it was making its way through the channel between Niutou island and Nanshanwei. Eventually they would head west assist gunboats 25 and 26 after heavily damaging the Liberation.
The Yongkang and Chang Jiang gunboats, stationed near the west Qingzhou and sanjiao islands to the west of Nanshanwei were ordered to stay on their patrol route and later engaged a communist landing force on west Qingzhou island.
After engaging and severely damaging the Guishan, Taihe and Zhonghai split, with Taihe heading north towards the communist gunboats to help the second patrol fleet and to engage the landing party at west Qingzhou island. Zhonghai headed south west to relieve Yongding from her patrol duties at Tong Ao island, so that she may support Yongkang. However, Zhonghai would also join in the battle.
The second patrol fleet would also join in repelling the communist landing at West Qingzhou island, however many communist landing boats have slipped through and landed at the island but not without taking heavy casualties. Another wave of landing craft were headed to the island but were repelled by the nationalist gunboats already there. It was at this segment of the battle that commander Qi Hongzhan had his arm injured and along with the many dead and injured on the Taihe, made the decision to leave the battle for aid. The commander of the Yongding took command of the area until the warship Xinyang could arrive and take over as the flagship.
After the campaign many of the patrol boats and a few gunboats would be abandoned or destroyed before the nationalists retreated from the archipelago. A few of the guerilla gunboats such as Guli (古利), Nanshan (南山) and Lidong (利東) (which may have been captured transports) would later be incorporated into the navy as gunboats.
Second stage