Fault Lines

Today, Les, Jamil, Morgan, and Andy revisit Iran as protests continue to escalate and the reported death toll climbs into the thousands. President Trump was briefed this week on response options and has publicly signaled support for demonstrators, saying that “help is on the way.” What does meaningful support for Iranian protesters actually look like? Should the United States openly back regime change—and if so, how, given limited military presence and a fractured opposition? Are covert action, cyber operations, and coordination with regional partners more realistic tools than overt force? And as Trump isolates Iran economically and diplomatically, is this the beginning of a pressure campaign that could genuinely tip the balance, or another moment of outrage without follow-through?@lestermunson@jamil_n_jaffer@morganlroach@andykeiserLike what we're doing here? Be sure to rate, review, and subscribe. And don't forget to follow @faultlines_pod and @masonnatsec on Twitter!We are also on YouTube, and watch today's episode here: https://youtu.be/bVOL-Ec7zB0

Today, Les, Jamil, Morgan, and Jess discuss escalating protests across Iran, where economic collapse and political repression are driving nationwide unrest. Demonstrations that began with small business owners have spread to major cities, prompting a violent crackdown by security forces and an internet shutdown. As the regime insists the situation is under control, President Trump has warned publicly that continued mass killings could trigger U.S. action, while Iranian officials have quietly floated the possibility of renewed nuclear talks.Is this protest movement meaningfully different from past uprisings that fizzled under pressure? Has the regime been weakened enough, internally and externally, for unrest to threaten its hold on power? And with Iran’s opposition fractured and no clear alternative government waiting in the wings, what leverage does the United States actually have if it wants to support change without creating a far more dangerous vacuum?@lestermunson@jamil_n_jaffer@morganlroach@NotTVJessJonesLike what we're doing here? Be sure to rate, review, and subscribe. And don't forget to follow @faultlines_pod and @masonnatsec on Twitter!We are also on YouTube, and watch today's episode here: https://youtu.be/wS56YpITIdI

Today, Jess, Les, Morgan, and Matthew discuss why Greenland has suddenly become a focal point of U.S. foreign policy. President Trump has reignited debate by publicly suggesting the United States should own Greenland, escalating rhetoric well beyond existing basing rights under the 1951 agreement with Denmark. While administration officials have walked back any suggestion of force, Greenlandic leaders have rejected the idea outright—even as the island’s strategic importance grows amid heightened Arctic competition involving Russia and China.What national security concerns is the administration trying to address with its approach to Greenland? Is the focus on Greenland driven by concerns over Russian and Chinese military activity, access to critical minerals, missile overflight risks, or all of the above? And while the U.S. case for Greenland’s strategic importance is clear, does the administration’s approach risk alienating Denmark and other NATO allies — and if so, at what cost to Arctic cooperation?@morganlroach@lestermunson@NotTVJessJonesLike what we're doing here? Be sure to rate, review, and subscribe. And don't forget to follow @faultlines_pod and @masonnatsec on Twitter!We are also on YouTube, and watch today's episode here: https://youtu.be/65o2FCiBrjw

Today, Morgan, Les, Jamil, and Algene discuss the United States’ announcement that it would provide security guarantees to Ukraine as part of a potential peace settlement with Russia. The move follows discussions in Paris between U.S. and European partners, outlining a proposed security architecture for Ukraine and “legally binding” commitments meant to support a postwar order. U.S. Envoy Steve Witkoff and Jared Kushner have both indicated President Trump’s backing, and Ukrainian officials say roughly 90 percent of a peace framework is agreed—though major territorial questions remain unresolved.What do security guarantees actually mean in practice, and do they bring Ukraine any closer to a durable peace? Are these commitments meaningful deterrents, or largely symbolic without clear enforcement mechanisms? And with Russia showing no willingness to accept a ceasefire—or the presence of Western peacekeepers—what happens if Moscow simply ignores the framework altogether? Check out the sources that helped shape our Fellows’ discussion: @morganlroach@lestermunson@jamil_n_jaffer@algenesajeryLike what we're doing here? Be sure to rate, review, and subscribe. And don't forget to follow @faultlines_pod and @masonnatsec on Twitter!

Episode 541: Operation Maximum Resolve - Regime Tailoring?Today, Les, Morgan, Jess, and Matthew discuss the U.S. operation in Venezuela over the weekend that extracted President Nicolás Maduro and his wife and brought them to New York to face drug trafficking charges. While the Trump administration says no U.S. troops are currently on the ground and denies plans to run Venezuela’s day-to-day affairs, the operation follows months of apparent intelligence and military preparation and coincides with a significant U.S. naval presence offshore. Former Vice President Delcy Rodríguez has been sworn in as interim president, setting the stage for a highly uncertain next phase inside the country.Is this regime change—or a more limited leadership removal designed to avoid the mistakes of past U.S. interventions? Does extracting a single leader offer a cheaper, more effective alternative to invasion and occupation, or does it raise serious questions about sovereignty and international law? And can the United States translate a stunning military and intelligence success into lasting deterrence, democratic opportunity, and a rollback of Russian and Chinese influence in the Western Hemisphere?@lestermunson@morganlroach@nottvjessjonesLike what we're doing here? Be sure to rate, review, and subscribe. And don't forget to follow @faultlines_pod and @masonnatsec on Twitter!We are also on YouTube, and watch today's episode here: https://youtu.be/OEyq3qnwbyo 

Episode 540: The Holiday Special - Unwrapping 2025Today, Jessica, Jamil, Morgan, Lester, Les, Lipsey, Matthew, and Marc take stock of a consequential year in U.S. national security. From President Trump’s push to brand himself as a “peace president”—highlighted by multiple diplomatic agreements and the Gaza peace plan—to moments of hard power, including U.S. and Israeli strikes on Iran’s nuclear program, 2025 defied easy labels. The team reflects on undercovered but significant developments as well: the dismantling of the U.S. foreign assistance architecture, growing concern over advanced technology transfers to China, sweeping changes to the federal workforce through DOGE, and a renewed focus on the Western Hemisphere, particularly Venezuela and Haiti.Looking ahead to 2026, what will ultimately shape U.S. national security: the trajectory of Ukraine, a recalibration of China policy, or the domestic pressures of a midterm election year? Are tariffs becoming a permanent tool of U.S. leverage or a temporary negotiating tactic? And as the administration continues to reshape how American power is exercised, which lessons from 2025 will matter most?@jamil_n_jaffer@nottvjessjones@lestermunson@WashingtonFlack@morganlroachLike what we're doing here? Be sure to rate, review, and subscribe. And don't forget to follow @faultlines_pod and @masonnatsec on Twitter!