No, it was a massacre of conscientious objectors and draft evaders who were German Texans, loyal to the Union, who were trying to escape to Mexico to avoid conscription into the Confederate Army in 1862.
Yes, it is historically recorded as "The Battle of the Nueces" and took place on August 10th, 1862. The battle was fought between German Unionists and a small division of Confederate soldiers. It was a small skirmish, the Unionists were thoroughly defeated, and no real progress in the war was made because of it! A massacre would imply that the Confederate troops waged battle against an overall unarmed and unorganized group, like civilians at a rally. This is NOT the case as the Unionists were led by Maj. Fritz Tegener, making them militarily organized. Their alliance with the Union therefor made them enemy soldiers in enemy territory.
The Battle of Appomattox River whose outcome led Lee to surrender to Grant, was not the final battle of the Civil War. The last encounter of the war was that of Palmito Ranch, fought on May 12, 1865.
The Battle of Stone's River took place Tennessee. The battle created a huge number of casualties, numbering almost 24,000 troops.
The Chickahominy is a river in Virginia, about 10 kilometers eastward from Richmond, where many battle were fought.
Antitam was the first major battle in the Civil War.
The Nueces River became the border between Mexico and Texas.
Nueces River. This is one of the "official" reasons for the Mexican-American War.
One of the earliest battles of the Civil War was the Battle of Manasas or also known by the river's name, Bull Run.
Battle of Wilson's Creek
The Battle of Palmito Ranch.
The Nueces River.
Two major battle in the South during the Civil War include the Battle of Chickamauga and the Battle of Stones River.
Nueces River and the the Rio Grande River. Mexico claimed that the Nueces river was the Texas and Mexico border. The US claimed that the Rio Grande was the correct location.
The US Civil War was primarily "river battles", the famed Monitor vs the Merrimack being the most noted. US Navy riverine boats also fought in the rivers during the Vietnam War. Both the Civil War & Vietnam War used "River Monitors."
The US Civil War Battle of Aldie took place in Virginia on June 17, 1863 in Virginia. The battle was fought as General Lee was making his way to the Potomac River. The battle was inconclusive.
Battle of Wilson's Creek
The Battle of Appomattox River whose outcome led Lee to surrender to Grant, was not the final battle of the Civil War. The last encounter of the war was that of Palmito Ranch, fought on May 12, 1865.
The Battle of Pea Ridge, also known as the Battle of Elkhorn Tavern, was the largest Civil War battle fought west of the Mississippi River in 1862. It took place in Arkansas and was a key Union victory that helped secure control of Missouri and the Mississippi River.