Ukrainian President Volodymyr Zelenskyy said Tuesday a “savage” missile attack by Russia, less than a day after the two nations held peace talks, underscores the need for more intense sanctions on Moscow. Russian and Ukrainian negotiators appeared to make little progress Monday in Istanbul. The situation is precarious, given that seismic developments on the battlefield in recent days are reshaping the war in ways that might put momentum firmly on Kyiv’s side.

An unprecedented June 1 drone swarm assault by Ukrainian forces on at least four major airfields scattered across Russia represented a major logistical and psychological blow to Moscow’s war machine and has dramatically increased pressure on Russian President Vladimir Putin. It remains to be seen how the attack will impact the Trump administration’s push for a ceasefire.

Speculation has surged in U.S. national security circles this week over the extent to which U.S. intelligence may have directly or indirectly aided Ukraine in moving more than 100 of its drones covertly through Russia to attack military targets stretching from the Moscow region to the eastern edges of Siberia.

Meanwhile, in a Tuesday attack, Ukraine said it blasted the Kerch Bridge, a key link between Russia and Crimea. While the Ukrainian Security Service said the bombing seriously hurt the bridge’s foundations, traffic across the bridge resumed after a three-hour closure.

President Trump is sharply rejecting reports that U.S. negotiators offered a deal to Tehran that would allow Iran to continue its uranium enrichment program, asserting that any potential deal wouldn’t allow for enrichment of any kind.

Axios reported on Monday that U.S. Special Envoy Steve Witkoff had suggested an agreement allowing limited enrichment. After the report appeared online, Mr. Trump shot back on Truth Social, writing that “under our potential Agreement — WE WILL NOT ALLOW ANY ENRICHMENT OF URANIUM!”

The back-and-forth came after Iranian, Egyptian and United Nations leaders met in Cairo on Monday to discuss Iran’s nuclear program after a report from the International Atomic Energy Agency — the top U.N. nuclear watchdog — said Tehran is further increasing its stockpile of uranium enriched to near weapons-grade levels.

The June 1 attack on pro-Israel marchers in Colorado marks the latest instance of antisemitic violence in the U.S., which has grown more brazen and brutal as Israel’s war with the terrorist group Hamas continues. Washington Times reporter Matt Delaney offers a deep dive on the FBI’s investigation into 45-year-old Mohamed Sabry Soliman, who yelled “Free Palestine” during the attack with a makeshift flamethrower and other incendiary devices.

Mr. Soliman is facing federal hate crime charges in the Boulder assault because he “wanted to kill all Zionist people and wished they were all dead,” according to court documents filed Monday. The filing said Mr. Soliman, an Egyptian illegal immigrant, planned the attack for a year and told investigators “he would do it again.” FBI Director Kash Patel called the violent spasm a “targeted terror attack.”

The Colorado incident bore similarities to a May 21 attack in Washington, where prosecutors are investigating potential hate crime and terrorism charges for Elias Rodriguez, a 31-year-old who is accused of fatally shooting two Israeli Embassy workers as they were leaving an event at the Capital Jewish Museum.

Mr. Trump’s push for a futuristic missile defense shield is rooted in a moral vision to save lives in a dangerous world, according to Jed Babbin, who writes that “when President Reagan announced his Strategic Defense Initiative in 1983, he posed a moral question: Is it better … to protect lives or to avenge them?”

“Asking that question toppled our and our enemies’ entire theory of defense. Instead of ‘mutually assured destruction,’ we began thinking about creating an effective defense against ballistic missiles,” writes Mr. Babbin, a columnist for The Times and a contributing editor for The American Spectator. “Reagan’s plan never came to fruition. Democrats mocked it, calling it ‘Star Wars.’ The funding didn’t come, and the technology wasn’t ready for a real missile defense.”

“President Trump is facing a vastly different set of threats than Reagan faced,” he writes. “The architecture of the Golden Dome system comprises a layered defense, which is made up of three types of interceptors: short range, midrange and long range. Mr. Trump’s plan requires interceptors to be based in space, which will be our first weapons in orbit.”

Any operation against Iran’s resilient and furtive nuclear activities “must be understood as a long-term campaign, not a one-off strike,” writes Jonathan Ruhe, who asserts that “military action certainly has unknowns that should not be minimized, but the risk of inaction is greater.”

“The United States cannot permit Iran to become a nuclear weapons power, threaten the existence of Israel and other U.S. partners, trigger a Middle East arms race and evict the United States from the region,” writes Mr. Ruhe, director of foreign policy at the Jewish Institute for National Security of America. “The longer talks drag on, the more likely Iran is to achieve these objectives with or without a deal.”

“Moreover,” he writes, “permitting Iran to cross the nuclear threshold, a core bipartisan red line for decades, would severely damage U.S. credibility globally, undermining American allies and emboldening China, Russia and other adversaries.”

• June 3-4 — AI+ Expo, Special Competitive Studies Project

• June 3 — CNAS 2025 National Security Conference | America’s Edge: Forging the Future, Center for a New American Security

• June 4 — Campus Communism: How the CCP Compromised Harvard and U.S. Higher Education, Hudson Institute

• June 4 — America’s “Golden Dome” Explained, Center for Strategic & International Studies

• June 4 — The Future of U.S. Foreign Policy in the Middle East with Sen. James Risch, Hudson Institute

• June 10 — U.S.-China Competition and the Value of Middle East Influence, Defense Priorities

• June 26 — The Realities of an Invasion of Taiwan, Stimson Center