│ │ Section. │ │501 Signal Command: │ │ 501 Tel. Detch. │ │ 190 Wireless │ │ Detch. ─────────────┼───────────────────┼─────────────────── Medical and │ │215 Ambulance Co. Veterinary.│ │ │ │146 Field Hospital. │ │ │ │279 Field Hospital. │ │ │ │201 Vet. Hospital. ─────────────┼───────────────────┼─────────────────── Transport. │ │ ─────────────┼───────────────────┼─────────────────── Odd Units. │ │ ─────────────┴───────────────────┴─────────────────── HISTORY. 1914–15. Called Jacobi’s Division at the beginning of the war, and a part of the 1st Landwehr Corps, the 1st Landwehr Division fought under this corps on the eastern front. It was first called the 10th Landwehr Division, taking the name of 1st Landwehr Division in July, 1915. It comprised the 6th Mixed Landwehr Brigade (34th and 49th Landwehr Regiments) and the 34th Mixed Landwehr Brigade (31st and 84th Landwehr Regiments). EAST PRUSSIA-POLAND. 1. First engaged in East Prussia (Angerburg, Gumbinnen, August, 1914, to January, 1915), Jacobi’s Division took part in the operations between Mariampol and Suwalki. Early in March, 1915, it was before Lomza; then in the Ossowiec region on the Bobr. It was at this time that the division became known as the 1st Landwehr Division, and the 33d Landwehr Regiment was attached to it. 2. At the beginning of August the division was in the Kalvariia region, Suwalki. It took part in the summer offensive, but remained in support, never doing any actual fighting. COURLAND. 3. After a rest on the Little Berezina, it went to Courland, going into line in the Uxkuell region (October). 1916. 1. The division remained to the south of Riga until the end of July, 1916. VOLHYNIA. 2. In August it went to Volhynia, where it took over the Borovno sector (on the Stokhod) and held it for more than a year, until about November, 1917. The 6th Landwehr Brigade was taken away and remained in the Mitau region (April, 1916). Since then the division has been composed of only three regiments. 1917. VOLHYNIA. 1. Relieved in the Borovno sector toward the end of 1917, went to rest in the vicinity of Kovel. In January, 1918, the division received reinforcements from the 9th Landwehr Regiment (dissolved) and also from the 20th Landsturm Regiment. It had already had men of the 1919 class since November, 1917. Still more arrived in February, 1918, when the division was on the point of departing for Belgium.