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Con   gressionaI Research Se
informing I hej  legs ive deb)ate sne I1914


Updated December   1, 2023


Ukrainian Military Performance and Outlook


Since Russia launched its full-scale invasion of Ukraine in
February 2022, the Ukrainian Armed Forces (UAF) have
successfully defended against and pushed back Russian
forces in many regions, despite several apparent
disadvantages. The UAF has demonstrated flexibility over
the course of the conflict to date, as well as an ability to
integrate Western security assistance into its military
campaigns. The UAF  continues to face obstacles to
sustaining momentum-including   losses in personnel and
equipment-against  Russian forces, however, as some
Ukrainian officials candidly admit.

Since early 2022, the Biden Administration and Congress
have supported Ukraine's defense of its territorial integrity
against Russia's invasion. The UAF's evolving condition
may  be of interest to Congress as Members evaluate
whether to appropriate additional funds to support Ukraine
and how to conduct oversight of U.S. policies and
assistance.

Person   ne I
Some  observers note that the UAF's overall performance to
date has been in part due to high levels of recruitment and
motivation. High losses, however, pose a continued
challenge to the UAF's ability to sustain effective
operations.

After Russia's initial invasion of Ukraine in 2014, the UAF
gained important combat experience fighting Russian-led
forces in Ukraine's eastern regions of Donetsk and Luhansk
(known  as the Donbas). This experience led to a large
proportion of trained veterans among Ukraine's population.
In 2022, these veterans and other volunteers (including
foreign recruits) were quickly mobilized into Ukraine's new
volunteer Territorial Defense Forces (TDF) and Reserve
without the need for lengthy training. These units have been
crucial in supporting regular UAF units, enabling the
regular units to spearhead operations and counteroffensives.

Since the beginning of the 2022 war, the UAF reportedly
has suffered high levels of casualties, lowering force
quality. Losses are likely higher among regular UAF and
Special Forces units, leading to a greater reliance on TDF
and Reserve units. Many of these TDF and Reserve units
also have sustained heavy casualties, further increasing the
proportion of new recruits needed to regenerate forces.
Unlike in the initial period of the war, when most recruits
were veterans, at present most new recruits have little
military experience and, as a result, take longer to train.
Currently, the UAF is also experiencing growing recruiting
challenges; Ukrainian officials have stated they intend to
implement further mobilization plans (such as changes in
conscription) in the near future.


The UAF  faces several challenges in deploying new
personnel. First, at the time of the invasion, Ukraine did not
have a fully developed professional noncommissioned
officer (NCO) corps, which it previously had been seeking
to develop along NATO  standards. As described above, a
high number of trained veterans, many with combat
experience, mitigated to some degree the need for an
established NCO corps to train and command new recruits.
Losses among  these veterans have increased the importance
of developing a professional NCO corps and affected unit-
level capability.

Second, the UAF's need for immediate reinforcements
creates pressure to deploy troops with only basic training.
To sustain combat operations in the current conflict,
however, the UAF  continues to balance training personnel
to conduct complex operations and operate advanced
weaponry  with ensuring sufficient personnel are deployed
at the front line.

Finally, the UAF struggles to train officers for staff
positions to assist commanders in managing and
coordinating operations. The lack of trained staff officers
has in some cases led to tactical operations being
coordinated and managed by higher-level command staff,
leading to centralized and slower decisionmaking.

Equiprnent
The UAF  operates a mix of Western and Soviet or Russian
equipment. This variety of systems results in diverse
capabilities across units and complicates maintenance and
standardization. To date, the UAF has sustained significant
equipment losses. Some UAF  units appear to be operating
without mechanized or motorized vehicle support, likely
due to losses and limited replacements. Despite losses,
Western security assistance and UAF resilience in repairing
and maintaining equipment has been crucial to UAF
successes.

Ukraine has nearly exhausted its supplies of Soviet and
Russian artillery and rocket ammunition, making the UAF
almost totally reliant on Western assistance for artillery and
rocket artillery systems and ammunition. Ukrainian
officials have emphasized a need for long-range rocket and
artillery systems to counter Russia's quantitative
advantages in long-range fire. The UAF has demonstrated
an ability to use qualitative advantages provided by
Western security assistance (e.g., long-range precision
fires) to mitigate Russian quantitative advantages in
artillery.

Ukraine's domestic defense industry produces a wide
variety of weapons but has been unable to meet the
country's full wartime demands. In addition, Russian forces

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