emy’s intentions and its ability to carry them out.
Since the Soviet era, military intelligence has been
classified according to three categories: strategic, op-
erational, and tactical. Strategic intelligence entails an
understanding of actual and potential foes at the
broadest level, including the organization and capa-
bilities of their armed forces as well as the economy,
population, and geography of the national base. Op-
erational intelligence refers to knowledge of military
value more directly tied to the theater, and is typi-
cally conducted by the staffs of front and army for-
mations, while tactical intelligence is carried out by
commanders at all levels to gather battlefield data di-
rectly relevant to their current mission.
Before the Great Reforms (1860s–1870s), Russ-
ian generals had three basic means of learning
about their foes: spies, prisoners of war, and re-
connaissance. Thus, at the Battle of Kulikovo
(1381) Prince Dmitry Donskoy dispatched a reli-
able diplomat to the enemy’s camp to study the
latter’s intentions, questioned captives, and per-
sonally assessed the terrain, all of which played a
role in his famous victory over the Mongols. While
capable commanders had always understood the
need for good intelligence, until the early eighteenth
century the Russian army had neither systematic
procedures nor personnel designated to carry them
out. Peter I’s introduction of a quartermaster ser-
vice (kvartirmeisterskaya chast) in 1711 (renamed
the general staff, or generalny shtab, by Catherine
II in 1763) laid the institutional groundwork. The
interception of diplomatic correspondence, a vital
element of strategic intelligence, was carried out by
the foreign office’s Cabinet Noir (Black Chamber,
also known as the shifrovalny otdel), beginning
under Empress Elizabeth I (r. 1741–1762). Inter-
ministerial rivalry often hampered effective dis-
semination of such data to the War Ministry.
It would take another century for military in-
telligence properly to be systematized with the cre-
ation of a Main Staff (glavny shtab) by the reformist
War Minister Dmitry Milyutin in 1865. Roughly
analogous to the Prussian Great General Staff, the
Main Staff’s responsibilities included central ad-
ministration, training, and intelligence. Two de-
partments of the Main Staff were responsible for
strategic intelligence: the Military Scientific De-
partment (Voyenny ucheny komitet, which dealt with
European powers) and the Asian Department (Azi-
atskaya chast). Milyutin also regularized proce-
dures for operational and combat intelligence in
1868 with new regulations to establish an intelli-
gence section (razvedivatelnoye otdelenie) attached to
field commanders’ staffs, and he formalized the
training and functions of military attachés (voen-
nye agenty). The Admiralty’s Main Staff established
analogous procedural organizations for naval in-
telligence.
In 1903, the Army’s Military Scientific Depart-
ment was renamed Section Seven of the First Mili-
tary Statistical Department in the Main Staff. Dismal
performance during the Russo-Japanese War in-
evitably led to another series of reforms, which saw
the creation in June 1905 of an independent Main
Directorate of the General Staff (Glavnoye Upravlenie
Generalnago Shtaba, or GUGSh), whose first over
quartermaster general was now tasked with intelli-
gence, among other duties. Resubordinated to the
war minister in 1909, GUGSh would retain its re-
sponsibility for intelligence through World War I.
After the Bolshevik Revolution, Vladimir Lenin
established a Registration Directorate (Registupravle-
nie, RU) in October 1918 to coordinate intelligence
for his nascent Red Army. At the conclusion of the
Civil War, in 1921, the RU was refashioned into
the Second Directorate of the Red Army Staff (also
known as the Intelligence Directorate, Razvedupr,
or RU). A reorganization of the Red Army in 1925
saw the entity transformed into the Red Army
Staff’s Fourth Directorate, and after World War II
it would be the Main Intelligence Directorate
(Glavnoye Razvedivatelnoye Upravlenie, GRU).
Because of the presence of many former Impe-
rial Army officers in the Bolshevik military, the RU
bore more than a passing resemblance to its tsarist
predecessor. However, it would soon branch out
into much more comprehensive collection, espe-
cially through human intelligence (i.e., military
attachés and illegal spies) and intercepting com-
munications. Despite often intense rivalry with the
state security services, beginning with Felix Dz-
erzhinsky’s Cheka, the RU and its successors also
became much more active in rooting out political
threats, whether real or imagined.
Both tsarist and Soviet military intelligence
were respected if not feared by other powers. Like
all military intelligence services, its record was nev-
ertheless marred by some serious blunders, includ-
ing fatally underestimating the capabilities of the
Japanese armed forces in 1904 and miscalculating
the size of German deployments in East Prussia in
1914. Yet even the best intelligence could not com-
pensate for the shortcomings of the supreme com-
mander, most famously when Josef Stalin refused
to heed repeated and often accurate assessments of
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