Introduction
How is the Military in Ukraine and how does it work to maintain Sucity and fight terrorism? In terms of Military and security forces, we have the Armed Forces of Ukraine (AFU; Zbroyni Syly Ukrayiny or ZSU): Ground Forces (Sukhoputni Viys’ka), Naval Forces (Viys’kovo-Mors’ki Syly, VMS), Air Forces (Povitryani Syly, PS), Air Assault Forces (Desantno-shturmovi Viyska, DShV), Ukrainian Special Operations Forces (UASOF), Unmanned Systems Forces, Territorial Defense Forces (Reserves)

Ministry of Internal Affairs: National Guard of Ukraine, State Border Guard Service of Ukraine (includes Maritime Border Guard or Sea Guard) (2024).
In Ukraine, the primary focus of the Ukrainian Armed Forces (UAF) is defense against Russian aggression; in February 2022, Russia launched an unprovoked full-scale invasion of Ukraine in what is the largest conflict in Europe since the end of World War II in 1945; as of 2024, the front line of the fighting stretched about 1,000 kilometers (some 600 miles) north and south in eastern and southern Ukraine; Russia’s forces have also launched missile and armed drone strikes throughout Ukraine, hitting critical infrastructure, including power, water, and heating facilities, as well as other civilian targets; Russia first invaded Ukraine in 2014, occupying Ukraine’s province of Crimea and backing separatist forces in the Donbas region with arms, equipment, and training, as well as special operations forces and regular troops, although Moscow denied their presence prior to 2022; the UAF has received considerable outside military assistance since the Russian invasion, including equipment and training, chiefly from Europe and the US 

Ukraine has a relationship with NATO dating back to the early 1990s, when Ukraine joined the North Atlantic Cooperation Council (1991) and the Partnership for Peace program (1994); the relationship intensified in the wake of the 2014 Russia-Ukraine conflict and Russian seizure of Crimea to include NATO support for Ukrainian military capabilities development and capacity-building; NATO further increased its support to the Ukrainian military following Russia’s full-scale invasion in 2022 (2024)
Security and military information of Ukraine
Military and security service personnel strengths estimated 800,000 active Armed Forces personnel (2024)
Military equipment inventories and acquisitions prior to the full-scale Russian invasion in February 2022, the Ukrainian military was equipped largely with Russian-origin and Soviet-era weapons systems; since the invasion, it has received considerable quantities of weapons, including Soviet-era and more modern Western systems, from European countries and the US; Ukraine has a broad defense industry capable of building, maintaining, and upgrading a variety of weapons systems (2024)
Military service age and obligation 18 years of age for voluntary service; conscription abolished in 2012, but reintroduced for men in 2014; 25 years of age for conscription; prior to the Russian invasion of February 2022, conscript service obligation was 12-18 months, depending on the service (2024). note 1: following the Russian invasion in 2022, all nonexempt men ages 18 to 60 were required to register with their local recruitment offices and undergo medical screening for possible service; the Territorial Defense Forces (TDF) accepts volunteers, 18-60 years of age; since the invasion, hundreds of thousands of Ukrainians have volunteered for the regular armed forces, the TDF, or to work in civilian defense activities 

note 2: women have been able to volunteer for military service since 1993; as of 2024, nearly 70,000 women were serving in the armed forces in both uniformed and civilian positions 

note 3: since 2015, the Ukrainian military has allowed foreigners and stateless persons, 18-45 (in special cases up to 60), to join on 3-5-year contracts, based on qualifications; following the Russian invasion in 2022, the military began accepting medically fit foreign volunteers on a larger scale, with an emphasis on persons with combat experience; wartime volunteers typically serve for 6 months
Military deployments note: prior to the Russian invasion in 2022, Ukraine had committed about 500 troops to the Lithuania, Poland, and Ukraine joint military brigade (LITPOLUKRBRIG), which was established in 2014; the brigade is headquartered in Poland and is comprised of an international staff, three battalions, and specialized units; units affiliated with the multinational brigade remain within the structures of the armed forces of their respective countries until the brigade is activated for participation in an international operation.
Military expenditures
Military Expenditures 2021 4% of GDP (2021 est.)
Military Expenditures 2020 4% of GDP (2020 est.)
Military Expenditures 2019 3.4% of GDP (2019 est.)
Military Expenditures 2018 3.1% of GDP (2018 est.)
Military Expenditures 2017 3.1% of GDP (2017 est.)
All Important Facts about Ukraine

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Ukraine is found in Eastern Europe