The Trump administration's continued attacks on NATO may cause long term damage to U.S. security if allies downgrade their cooperation with the U.S. @J_Dren and Ariane Tabatabai explain the benefits that NATO allies provide that would significantly harm U.S. security if lost.

The crisis over President Trump's threats to annex Greenland appears to be over for now, but the second- and third-order consequences will continue to unfold. On Lawfare Daily, @mollylroberts sat down with Ariane Tabatabai, and @J_Dren to discuss the crisis and its implications

Diverging defence priorities, coupled with European rearmament, are reducing the free-rider problem that has long strained the relationship between the United States and European NATO | Analysis by @jcaverley and Ethan B. Kapstein | FREE TO READ | https://t.co/51620Tj8Y3

It's New Year, so time to look back and forward. These are 10 things I think we need to recognise in 2026. It’s a response to what I think are profoundly damaging mistaken assumptions I’ve heard and read from practitioners, journalists, and analysts in 2025. Warning: very long🧵

On Lawfare Daily, Ariane Tabatabai spoke to @J_Dren and Matthew Sharp about New START, the last bilateral nuclear arms control treaty between the United States and Russia, the implications of its expiration in Feb. 2026, and where the arms control regime might go from here.

Diplomacy with Russia isn’t working because so far it’s been built on a wrong understanding of Putin’s key objectives. He doesn’t want peace, but to achieve his goals in Ukraine. If America can help with that, he’ll take it. If not, he’s ready to keep fighting.

Some brief thoughts on the recent Witkoff–Ushakov–Dmitriev leaks and the broader state of the peace talks. 1. Moscow faces a serious structural problem: whom should it actually talk to on the American side? - Steve Witkoff is convenient and receptive to Russian ideas, but

What the crazy week of Russia-Ukraine diplomacy tells us about Secretary of State Rubio’s role in the administration — my report in @politico https://t.co/EGP4Pvpwrv

President Vladimir Putin proposed an extension to New START—a nuclear arms treaty that limits the size of U.S. and Russian nuclear arsenals. "An unverifiable, 1-year extension is not a substitute for peace in Europe," write John Drennan and Erin Dumbacher.

Yet the proposal pushed upon Ukraine from the Trump administration in its current form is one that so closely resembles the Kremlin’s maximalist demands that senior Ukrainian officials briefed on it called it a Putin wishlist and said it would essentially amount to Ukraine giving

Ukraine smuggled the drones into Russia, followed later by small wooden mobile cabins, people familiar said. The drones were then concealed under the roofs of the structures, which had been loaded on to lorries. On Sunday, the roofs were remotely opened and the drones launched

Ukraine’s forces launched a massive drone attack on airfields deep inside Russia that were home to strategic bombers used in air raids, in possibly their most audacious attack of the war. “More than 40 aircraft have been hit,” an official told @FT.

🎙️‼️ In the latest episode of @CEIP_Politika podcast before August break, I sit down with inimitable @e_sarotte to talk about @NATO summit, Russia's war on Ukraine, and a situation that is more ripe for escalation than the darkest days of the Cold War. https://t.co/aGUWeZYPrj

What does a cabinet reshuffle in Russia mean for 🇨🇳🇷🇺 government-to-government ties? It's about continuity, deepening, and long-term. Also, as Beijing and Moscow expand their defense industrial cooperation, Putin has elevated high-caliber professionals with China experience. 🧵

Economist Andrey Belousov appointed on a MoD. What does it say? A quick🧵 - Putin's priority is war; war of attrition is won by economics. Belousov is in favor of stimulating demand from the budget, which means that military spending will at least not decrease but rather increase

BREAKING: Biden admin announces $1B new package for Ukraine, including air defense interceptors, artillery rounds, armored vehicles, and anti-tank weapons. Full list: -RIM-7 and AIM-9M missiles for air defense; -Stinger anti-aircraft missiles; -Small arms and additional rounds

For those in town making choices on security assistance to Ukraine, if you need more reasons, then I have a warning to share with you about the Kremlin. I feel that I have a duty to warn. /1

We've done research on Russian coercive signaling, which today's MQ-9/SU-27 incident was. It's a close pass that went bad. There are patterns of how Russian platforms intercept U.S. or NATO platforms operating near Russia but in international airspace/waters. Context below.

Among other takeaways, the tank saga has been a good reminder that NATO is also a political alliance - in this case alliance management concerns over issues like "unity" seem to have trumped any questions about military utility or feasibility https://t.co/hqQcodKxjw

Interested in all things Ukraine, Russia, strategic stability, and European security? Then come work with us! @MaryEGlantz @DrHeatherAshby https://t.co/1vWY9CITOP