Question: Which battle happened first, Battle of the Ch'ongch'on River or  Battle of Stones River?
Context: The Battle of Wawon (Turkish: "Kunuri Muharebeleri" ), also known as the Battle of Wayuan (), was a series of delay actions of the Korean War that took place from November 27–29, 1950 near Wawon in present-day North Korea.  After the collapse of the US Eighth Army's right flank during the Battle of the Ch'ongch'on River, the Chinese 38th Corps advanced rapidly towards the critical road junction at Kunu-ri in an effort to cut off United Nations forces' retreat route.  In what was considered to be Turkey's first real combat action since the aftermath of World War I, the Turkish Brigade attempted to delay the Chinese advances at Wawon.  Although during the battle the Turkish Brigade was crippled after being encircled by Chinese forces with superior numbers, they were still be able to breach the Chinese trap and rejoin the US 2nd Infantry Division. The Stones River Greenway Arboretum is an arboretum located along the Stones River Greenway, beside the Stones River, in Murfreesboro, Tennessee. The Battle of Stones River or Second Battle of Murfreesboro, was fought from December 31, 1862, to January 2, 1863, in Middle Tennessee, as the culmination of the Stones River Campaign in the Western Theater of the American Civil War.  Of the major battles of the Civil War, Stones River had the highest percentage of casualties on both sides.  Although the battle itself was inconclusive, the Union Army's repulse of two Confederate attacks and the subsequent Confederate withdrawal were a much-needed boost to Union morale after the defeat at the Battle of Fredericksburg, and it dashed Confederate aspirations for control of Middle Tennessee. Stones River National Battlefield, a 570 acre park along the Stones River in Rutherford County, Tennessee, three miles (5 km) northwest of Murfreesboro and twenty-eight miles southeast of Nashville, memorializes the Battle of Stones River, a key battle of the American Civil War that took place on December 31, 1862 and January 2, 1863, which resulted in a strategic Union victory. The Battle of Changshao was a military conflict between Qi and Lu, two major principality states in Shandong Peninsula during the Spring and Autumn Period of Zhou dynasty.  The battle happened in the January (lunar calendar) of 684 BC at Changshao.  Lu claimed the victory under the lead of general Cao Gui (曹刿).  This battle is described in detail by Zuo Qiuming in his "Spring and Autumn Commentary of Zuo", but it is not mentioned in Sima Qian's book of "Shi Ji".  This battle is considered as a classic example of winning by good military strategies, and the widely-used Chengyu of "Yi Gu Zuo Qi" was derived from this battle. Frederick Phisterer (October 11, 1836 – July 13, 1909) was an American soldier who fought in the American Civil War.  Phisterer received his country's highest award for bravery during combat, the Medal of Honor.  Phisterer's medal was won for actions at the Battle of Stones River at Murfreesboro, Tennessee, now marked by the Stones River National Battlefield.  He was honored with the award on December 12, 1894. The Battle at Chignecto happened during Father Le Loutre’s War and was fought by 700 troops made up of British regulars led by Charles Lawrence, Horatio Gates, Rangers led by John Gorham and Captain John Rous led the navy.  This battle was the first attempt by the New Englanders to occupy the head of the Bay of Fundy since the disastrous Battle of Grand Pré three years earlier.  They fought against a militia made up of Mi’kmaq and Acadians led by Jean-Louis Le Loutre and Joseph Broussard (Beausoliel).  The battle happened at Isthmus of Chignecto, Nova Scotia on 3 September 1750. The Stones River Campaign of the American Civil War lasted from November 1862 to January 1863.  The campaign was tactically a draw but was a strategic Union victory due to the Confederate retreat after the Battle of Stones River. The Battle of the Ch'ongch'on River, also known as the Battle of the Ch'ongch'on () or the Second Phase Campaign Western Sector (), was a decisive battle in the Korean War, and it took place from November 25 to December 2, 1950, along the Ch'ongch'on River Valley in the northwestern part of North Korea.  In response to the successful Chinese First Phase Campaign against the United Nations forces, General Douglas MacArthur launched the Home-by-Christmas Offensive to evict the Chinese forces from Korea and to end the war.  Anticipating this reaction, the Chinese People's Volunteer Army Commander Peng Dehuai planned a counteroffensive, dubbed the "Second Phase Campaign", against the advancing UN forces. The Battle of Rednitz on 22 June 910, was a decisive victory of the Magyar cavalry over the East Francian - German kingdoms armies.  The location of this battle could be not determined with 100% certitude.  The battle happened near the river Rednitz, in Franconia, near the border with Bavaria ("in confinio Bavariae et Franciae").  After the battle, the German king Louis the Child, together with the Swabian, Frankish, Bavarian and Saxonian dukes, accepted to pay tribute to the Hungarian state.
Answer: Battle of Stones River