For effective execution of the objectives originally programmed in the invasion, four minimum tasks the Russian Armed Forces will need to accomplish with this mobilization:
Protect the perimeter of your occupied area from infiltration. From the Belarusian border north of Kiev to the Russian border east of Mariupol, the estimated perimeter of the occupied territory is approximately 2,950 kilometers in length. Using the basic calculation of a battalion of approximately 540 soldiers to protect each 80 kilometer section, perimeter security would require 19,980 (rounded up to +20,000) frontline soldiers. As these troops need personnel and logistical support, this equates to two reinforced Russian divisions with 2,400 personnel, logistics and aviation troops each (+4,800) and expanded coastal security (+1,500 troops) plus an army headquarters (1,000) for Task 1, requiring a minimum subtotal of 27,300;
Priority should be given to establishing secure support points in critical infrastructure, such as power plants and communication centers in urban areas. If the Russians are to keep or even annex the territory they have conquered, they will eventually need to provide food, water, energy, sanitation, healthcare and other essential services. The insurgents will attempt to target some of this infrastructure to undermine the occupation. There may be approximately 26 million people living in this occupied zone. Given the uncertainty of Ukrainian population estimates, population displacement from the war, and the relatively stable situation in Crimea (~2 million people), I use 19 million as a round population estimate. There are 22 major urban areas in the occupied zone. each urban area would have five major nodes requiring security, each node would require 145 soldiers, and each three nodes would require another 140 soldiers. Therefore, main node security would require roughly 25,900 soldiers.
Secure major roads and railways to keep internal lines of communication open. Keeping an occupation force stocked, fed and stocked with ammunition and spare parts for vehicles, radios and other equipment requires freedom of movement throughout the occupied area. Ukrainian insurgents will likely work to disrupt logistical traffic, ambush convoys, plant mines and other explosive devices, and otherwise disrupt Russian freedom of movement. Securing the lines of communication requires the creation of checkpoints and patrols along the routes most used by the occupation forces. Some risk must be taken on back roads, all of which can be used by insurgents to infiltrate and carry out attacks. the Russians would need to secure 7,255 kilometers of roads and railways. This breaks down into 181 sections, 63 troops per section (+11,403), with 140 battalions for every 400 troops (+4,060), plus two divisions and attachments (+4,800), requiring the deployment of an additional 20,300 troops, considering here are rounded numbers.
Protect the population and conduct civil-military and counterinsurgency operations. If the invasion of Russia is successful, the Russian Federation will de facto assume responsibility for the well-being of approximately 19 million people. This is equivalent to the population of the US states of New York or Florida. It is also approximately 14% of Russia's estimated current population. In terms of land mass and population, this will be by far the biggest occupation attempted since the Soviet occupation of Eastern Europe in the years after World War II. Much of the infrastructure needed to support the Ukrainian population in the occupied zone is currently being destroyed, which will impact the construction of local support infrastructure. Occupation officers (possibly from the Rosguardia, the Russian National Guard directly reporting to the President of the Republic) will be responsible for supporting millions of people and rebuilding their cities while fighting an active NATO-backed insurgency in material resources and advanced weapons systems. It will take a highly engaged joint civil-military, dedicated counterinsurgency force to give the Russians any hope of successfully managing these tasks.
An eventual takeover of Kharkiv, Ukraine's second largest city in demographic terms, would necessitate the need for a reinforced Russian motorized infantry battalion of 650 soldiers to protect each section. Using that same base estimate, Russia would need to allocate 110 battalions (+71,500 troops) into eight divisions (+22,400 personnel and division accessories) and one army group (+1,000) for a total of 94,900 troops. *Total occupation troop cost for all four tasks is 168,000 (27,300 + 25,900 + 20,300 + 94,900 = 168,400, rounded down). Another 168,000 troops would need to be kept in constant rotation for occupation duty, tying up approximately 336,000 Russian troops for what could be a multi-year occupation.
Using a new and likely advance limit west of the Dnieper River and north of Odessa, it is estimated that Russia would need to deploy at least 168,000 occupying troops and keep another 168,000 in constant rotation for a total of 336,000 troops. This constitutes over 95% of the entire Russian Ground Force of approximately 350,000 personnel, not including available Russian airborne, special operations, or National Guard troops.
March 09, 2022
Interestingly, the mobilization of 300,000 is a slightly lower number than the article above that was published in March of this year.