The successful ISIS-K plots against Iran and Russia also reveal another vulnerability: When a country is distracted or preoccupied with other security concerns or conflicts, it can potentially compromise the effectiveness of its counterterrorism efforts.

Recent years have witnessed a decrease in high-profile attacks by groups like the Islamic State, leading many to conclude that the threat was waning. As a result, global attention — and with it, intelligence and security resources — has shifted toward escalating power rivalries and conflicts across the Pacific, Eastern Europe and the Middle East.

Yet, this shift risks underestimating the enduring threat terrorist groups pose, laying bare the dangers of complacency.

The Moscow attack emphasizes ISIS-K’s resolve to expand its influence, raising concerns about the potential threat to Western nations, including the United States. Considering ISIS-K’s track record and clear aspirations, it would be naive to dismiss the possibility of an attack on American soil.

This article is republished from The Conversation, a nonprofit, independent news organization bringing you facts and analysis to help you make sense of our complex world.

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How Moscow terror attack fits ISIS-K strategy to widen agenda, take fight to its perceived enemies

ISIS-K’s attack in Moscow risks escalating the Russia-Ukraine war

Sara Harmouch does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.