Oh, yes. Every Confederate state seized or attempted to seize any and all federal property within its borders. That included arsenals and fortifications. Only four forts south of Virginia resisted with violence. The first, Fort Sumter, you already know. The second was Fort Pickens, at the entrance to Pensacola harbor in Florida. The other two were Fort Taylor (Key West, Florida) and Fort Jefferson (on an isolated island west of Key West ─ and if you get a chance to visit it, you should).

Closer to the border between slave and free states, the situation was more complicated. Fort Monroe at the entrance to Chesapeake Bay near Norfolk remained in Union hands, as did other isolated military posts in Virginia (especially western Virginia), Indian Territory, Kansas, the territories and Missouri.

It's important to note that at the outbreak of war in 1861, three-quarters of the regular U.S. Army was west of the Mississippi, at more than 60 federal forts spread from the Rio Grande to Puget Sound.

In the months immediately before and after the outbreak of war, northern citizens suspected ─ with some good cause ─ that President Buchanan's Secretary of War, a Virginian named John B. Floyd, was deliberately sending huge stockpiles of military equipment to the West and South, where they could be easily seized.

The most egregious surrender of American soldiers and property took place in Texas, where most of the 10,000 or so American soldiers in the West were stationed. The commander of the U.S. Army Department of Texas was Maj. Gen. David Twiggs, a 71-year-old from Georgia.

When Texas seceded, Twiggs was only too eager to surrender the entire U.S. Army in Texas to that state. As his friends later recalled, Twiggs said in 1860 that "the break-up was coming, and that there was no one living who could resist the secession movement successfully."

For his part, Twiggs did write to the War Department in December 1860, asking what he should do if Texans demanded the federal property. In the waning days of the Buchanan administration, no one wanted to state the obvious ─ that as a federal officer, Twiggs' duty was to protect federal property. Twiggs even wrote to General-in-Chief Scott, stating that he sympathized with the secessionists and asked to be relieved before Lincoln's inauguration.

Twiggs was ordered to turn over command to Col. Carlos Waite, a New Yorker who was prepared to resist, but the letter accepting Twiggs' resignation arrived only one day before a militia led by Texan Ben McCulloch streamed into San Antonio and demanded Twiggs' surrender. With no time to transfer command or prepare for the inevitable, Twiggs' surrender was made official on Feb. 18, and he turned over all federal buildings, property, supplies and military stores, as well as 19 forts and U.s. Army posts.

The 2,500 men of the 1st, 3rd and 8th U.S. Infantry Regiments, the 2nd Cavalry Regiment and the 1st Artillery regiment were promised safe-conduct and permitted to keep their personal arms and equipment. Ordered to proceed to the coast for evacuation, many were still in Texas when Confederate Col. Earl Van Dorn arrived in the state to take command after the opening of hostilities. He promptly arrested more than 800 Union soldiers and officers at Indianola, on the coast, and while most were eventually exchanged in prisoner exchanges, it took up to two years for this to happen.

I've drawn most of the Western U.S. information from Alvin Josephy's The Civil War in the American West, and the Eastern U.S. stuff from a variety of sources, including Foote and Goodheart.

As an interesting footnote, one of the U.S. Army soldiers in Texas upon Twiggs' surrender was a certain Col. Robert E. Lee, commander of the U.S. 2nd Cavalry. Lee had served as interim commander of the Department of Texas while Twiggs was on leave in December 1860, and Harry Turtledove has a fun what-if short story about what could have happened if Lee had been in command instead of Twiggs at the time of Texas' secession. If it interests you, look up "Lee at the Alamo."