Citing a 2008 study by US Army Major Glenn E. Kozelka and a 1995 RAND Corporation study by James Quinlivan, Motyl comes to the following conclusions when assessing troop requirements to occupy Ukraine in a military invasion scenario:
- • In order to occupy Donetsk and Luhansk provinces alone, Russian would have to deploy somewhere between 26,702 and 133,514 troops.
- • A “land bridge” from Crimea to Transnistria would mean occupying Kherson, Mykolaiv, and Odessa provinces—which would entail somewhere between 46,497 and 92,994 soldiers.
- • Occupying all seven southeastern provinces would require between 118,536 (26,702 for Donetsk and Luhansk and 91,834 for the others) and 317,182 (133,514 for Donetsk and Luhansk and 183,668 for the others).
- • If Russia decides to conquer all of Ukraine, it would need an additional 548,587 troops—for a grand total of 667,123 to 865,769 troops.
- • Kyiv city and Kyiv Province alone would require 90,676 occupying soldiers.
In light of Russia’s estimated current force levels on Ukraine’s borders (50,000–80,000), the best Russia could do under low- and medium-violence assumptions would be to invade a few southeastern provinces. If those assumptions are changed to medium or high, only one or two provinces would be within its grasp. These conclusions assume that an invasion would entail no force deterioration as a result of the Ukrainian army’s resistance. Change that assumption, and Russia’s capacity to occupy southeastern Ukraine declines even more.
Dr. Alexander Motyl is a professor of political science at Rutgers-Newark. A specialist on Ukraine, Russia, and the USSR