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Ukrainian President Volodymyr Zelensky (R) and Commander-in-Chief of the Armed Forces of Ukraine Oleksandr Syrsky (L) speak next to the first batch of Ukrainian made drone missiles "Peklo" (Hell) delivered to the Defence Forces of Ukraine in Kyiv on December 6, 2024, amid the Russian invasion of Ukraine.

Ukraine’s Long-Range War: How Drone & Missile Strikes Are Taking the Fight Deep Inside Russia

DEEP DIVE – By any traditional definition, the city of Ryazan doesn’t belong on a list of battlegrounds in the Ukraine war. There are no Ukrainian [...] More

EuropeUkraine

The Latest

Former CIA Station Chief on the Trump Administration’s Caribbean Strategy

Former CIA Station Chief on the Trump Administration’s Caribbean Strategy

EXPERT INTERVIEW — Secretary of War Pete Hegseth announced today that the U.S. has carried out three additional strikes on four sea vessels, bringing [...] More

AmericasLatin America
Inside Zelensky’s “Mega-Drone Deal” with the U.S.

Inside Zelensky’s “Mega-Drone Deal” with the U.S.

DEEP DIVE – Often lost in the Trump administration's on-again, off-again offer to deliver Tomahawk missiles to Ukraine is the proposed deal that [...] More

Tech/CyberEuropeUkraine
A drone flies in front of an Iranian flag in southern Tehran, Iran, on December 29, 2024.

Tehran’s Espionage Network in the U.S. Is Bigger and Bolder Than You Think

DEEP DIVE — Front companies, campus networks, diaspora recruits — Tehran’s espionage push on U.S. soil is bigger, bolder, and harder to track than [...] More

AmericasIranMiddle EastEspionage
The Caribbean Emerges as a Test of U.S. Power

The Caribbean Emerges as a Test of U.S. Power

DEEP DIVE — U.S. military forces this week carried out yet another strike on a vessel in Caribbean waters off Venezuela, marking the sixth such [...] More

AmericasLatin America
Ukrainian President Volodymyr Zelensky is greeted by US President Donald Trump (L) upon arrival at the White House West Wing in Washington, DC, on August 18, 2025.

High-Stakes Talks in D.C.: Frozen Assets, Air Defense, and Tomahawks

DEEP DIVE – A senior Ukrainian delegation will travel to Washington D.C. this week for talks that are expected to include the use of frozen Russian [...] More

Brad ChristianEuropeUkraine
Telecom Bust Near the UN Reveals New National Security Vulnerability

Telecom Bust Near the UN Reveals New National Security Vulnerability

DEEP DIVE — When Secret Service agents swept into an inconspicuous building near the United Nations General Assembly late last month, they weren’t [...] More

Tech/Cyber
Can Western Sanctions Stop Putin’s War?

Can Western Sanctions Stop Putin’s War?

DEEP DIVE – Looking at the recent headlines from Russia, this much seems clear: the West’s sanctions against the country are finally working.Oil [...] More

RussiaEurope
Witness to a Sea Change in the Middle East: Jack Keane Says Israel Has a Window to Break Iran’s Proxies

Witness to a Sea Change in the Middle East: Jack Keane Says Israel Has a Window to Break Iran’s Proxies

EXPERT PERSPECTIVE – The White House rolled out a 20-point plan on Monday calling for a permanent truce in Israel's war against Hamas that calls for [...] More

Middle EastIranIsrael
Special Report: Nat Sec EDGE 2025

Special Report: Nat Sec EDGE 2025

The Cipher Brief's Special Report on Nat Sec EDGE 2025The Nat Sec EDGE 2025 conference took place June 5–6, 2025 in Austin, Texas.ForewordThe 2025 [...] More

Tech/CyberBrad Christian
Iranian President Masoud Pezeshkian (R) speaks during a press conference after arriving at Mehrabad Airport in Tehran, Iran on September 27, 2025

Defiance Meets Desperation as Iran Faces Fresh UN Sanctions

EXPERT INTERVIEW – The United Nations has reimposed sweeping economic and military sanctions on Iran, ten years after lifting them under the 2015 [...] More

Middle EastIranInternational
Ukraine’s Great Cyber Heist

Ukraine’s Great Cyber Heist

DEEP DIVE -- For more than a decade, Moscow honed a shadow playbook — blending disinformation, ransomware, supply-chain sabotage, and quiet cyber [...] More

Tech/CyberEuropeUkraine
As Cyber Threats Grow, the Clock Ticks on a Critical Cybersecurity Law

As Cyber Threats Grow, the Clock Ticks on a Critical Cybersecurity Law

DEEP DIVE – The onslaught of cyberattacks against the U.S. and U.S. businesses has not let up and the clock is ticking on reauthorizing a new bill [...] More

Tech/Cyber