The success of Raven Sentry in predicting Taliban attacks underscored the potential of AI to enhance military intelligence, even as it highlighted the ongoing cat-and-mouse game between technology and human adaptation.
In the summer of 2020, American intelligence analysts in Afghanistan received a critical warning from a tool called "Raven Sentry." This AI tool, operational for only a few months, predicted a high probability of a violent attack in Jalalabad, the capital of Nangarhar province, at the beginning of July. The prediction came true, albeit a bit late, on August 2nd, when Islamic State militants struck the city's prison, resulting in 29 casualties.
The
inception of Raven Sentry traces back to October 2019, a time when American
forces in Afghanistan were grappling with diminishing resources. Troop numbers
were dropping, bases were closing, and intelligence resources were being
diverted elsewhere, all while violence was escalating. The last quarter of 2019
witnessed the highest level of Taliban attacks in a decade, necessitating a
novel approach to counter the rising violence. This need for innovation led to
the adoption of AI.
Political
violence, as it turns out, is not as random as it might seem. Research by
Andrew Shaver and Alexander Bollfrass, published in the journal International
Organisation in 2023, showed that high temperatures correlated with increased
violence in both Afghanistan and Iraq. When temperatures rose from 16°C to over
38°C, the likelihood of an Iraqi male expressing support for violence against
multinational forces increased significantly. Raven Sentry took this
understanding further by using historical data to predict future attacks.
A
specialized team of American intelligence officers, colloquially known as the
"nerd locker," was embedded within a special forces unit. This
environment was conducive to aggressive experimentation, and the team began by
studying patterns in insurgent attacks dating back to the Soviet occupation of
Afghanistan in the 1980s. Contractors from Silicon Valley assisted in training
a neural network to analyze correlations between historical violence data and
various open-source information, such as weather data, social media posts, news
reports, and commercial satellite images. The resulting model could identify
when district or provincial centers were at higher risk of attack and estimate
potential fatalities.
Initially,
America's intelligence agencies and the Pentagon were skeptical of Raven
Sentry. However, the tool's performance quickly proved its worth. By October
2020, the model achieved 70% accuracy, meaning that if it predicted an attack
with the highest probability (80-90%), an attack occurred 70% of the time. This
level of accuracy was comparable to human analysts, but Raven Sentry operated
at a much faster rate.
Anshu
Roy, CEO of Rhombus Power, one of the firms involved in Raven Sentry, found the
AI's effectiveness intriguing. Optical satellites observed towns becoming
darker at night before attacks, while areas associated with past enemy activity
became brighter. Synthetic aperture radar (SAR) satellites detected heightened
vehicle activity, and other satellites recorded increased carbon dioxide
levels, though the reason for this last observation remains unclear. The AI
also found that attacks were more likely when temperatures were above 4°C,
lunar illumination was below 30%, and it was not raining.
Colonel
Thomas Spahr, who documented the experiment in the journal Parameters, noted
that modern attacks often mirrored those from the 1980s in terms of location,
insurgent composition, and weapons used. Raven Sentry's ability to "learn
on its own" meant it continuously improved until its shutdown in August
2021, following America's withdrawal from Afghanistan. Despite its termination,
Raven Sentry had imparted valuable lessons to its human operators, who used its
predictions to direct classified systems for more detailed investigations.
Since
Raven Sentry's shutdown, armed forces and intelligence agencies have
significantly invested in AI for predicting attacks, known as "indicators
and warnings." These models have matured rapidly, with advancements such
as SAR images now offering ten-metre resolution, capable of identifying objects
smaller than a metre. A similar model, trained on data from Ukraine's front
lines, would quickly become highly effective, according to experts.
Colonel
Spahr cautioned that the process is not straightforward. Just as insurgents in
Iraq and Vietnam adapted their tactics to counter American technology,
adversaries would eventually learn to deceive AI systems. The Taliban's
ultimate victory against the United States and NATO in Afghanistan underscores
the potential for such adaptation.
America's
development of Raven Sentry highlights both the potential and limitations of AI
in modern warfare. While the tool demonstrated remarkable accuracy and speed,
it also required careful human oversight to interpret its predictions correctly
and understand its limitations. The evolving nature of warfare means that AI
tools like Raven Sentry will need to continually adapt to stay ahead of
adversaries who are also learning and evolving.
In
a world where technology often promises more than it can deliver, one might
wonder if, someday, we will need an AI tool to predict the predictions of our
AI tools.
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