On 1 November 1883, the 3rd Engineer Regiment was formed in
Florence with companies transferred from the
1st Engineer Regiment and
2nd Engineer Regiment. Each of the two regiments transferred three telegraphers companies, two sappers companies, two
Ferrovieri companies, and one
train company. On 1 November 1887, the regiment formed three new sapper companies and a Specialists Company. On the same date, the regiment transferred its four Ferrovieri companies to the
4th Engineer Regiment, which in turn transferred a train company to the 3rd Engineer Regiment. During the same year the regiment's 3rd Telegraphers Company was sent to
Eritrea, where it fought in the
Italo-Ethiopian War of 1887–1889. In 1894, the Specialists Company and a sappers company were detached to Rome, where they formed the Specialists Brigade. On 1 November 1895, the regiment ceded a train company to help form the
5th Engineer Regiment (Miners). On the same date, the regiment was renamed 3rd Engineer Regiment (Telegraphers) and consisted of a staff, four sappers-telegraphers brigades, the Specialists Brigade, two train companies, and a
depot. The four sappers-telegraphers brigades fielded a total of six telegraphers and six sapper companies, while the Specialists Brigade fielded the Specialists Company and a sappers company. In 1895, the regiment provided seven officers and 192 enlisted for units deployed to Eritrea for the
First Italo-Ethiopian War. On 31 December 1975, the X Signal Battalion was renamed 10th Signal Battalion "Lanciano". The battalion was named for the
Lanciano Pass, which connects the provinces of
Chieti and
Pescara. After the reform, the 10th Signal Battalion "Lanciano" consisted of a command, a command and services platoon, and three signal companies. The battalion was assigned to the Army General Staff's Signal Inspectorate and had territorial functions, while operational tasks were assigned to the
11th Signal Battalion "Leonessa". In 1984, the battalion's Command and Services Platoon was expanded to Command and Services Company, while one of the battalion's three signal companies was disbanded. Between 1995 and 2016, the regiment deployed to
Kosovo,
Lebanon,
Afghanistan,
Iraq, and
Sudan. For its conduct and service in these missions, the regiment was awarded in 2017 a Gold Cross of Army Merit, which was affixed to the regiment's flag. == Organization ==