Cyber threats to critical U.S. infrastructure will only grow more common in the coming years, and America needs to develop a better deterrence strategy to ward off digital attacks from its enemies. That’s the central message delivered by Andrew Hallman, former CIA deputy director for digital innovation, who recently spoke to the Threat Status Podcast and urged policymakers to go on the offensive in cyberspace.

“I think we just have to be used to the fact that we’re going to be attacked, some of our most sensitive systems will be attacked, and we have to have the resiliency, but then also we have to be defending forward,” said Mr. Hallman, now the vice president of national security strategy and integration at the national security IT firm Peraton, during his recent appearance on the show.

Mr. Hallman’s interview with Threat Status comes just weeks after the Cybersecurity and Infrastructure Security Agency, or CISA, revealed that it was hacked. The Washington Times’ Ryan Lovelace has been all over that story, detailing how the federal government still doesn’t know the full extent of the hack, which took place nearly six months ago. Mr. Lovelace reports that the government is struggling to define the scope and consequences of the hack that exposed a tool used to track facilities with dangerous chemicals.

American chemical facilities are seen as potentially vulnerable to cyberattacks. Those facilities were identified as core components of critical U.S. infrastructure in a major national security memo signed by President Biden in April.

America’s enemies are seeking to capitalize on the attempted assassination of Mr. Trump. National Security Correspondent Bill Gertz is tracking those efforts in China, where state-controlled media characterized the incident as an example of escalating political violence under the U.S. democratic system — a major propaganda theme of Beijing as it promotes its socialist system as an alternative to countries around the world.

The Chinese Communist Party-affiliated Global Times, quoting Chinese analysts, said the shooting proves that “the long-standing toxic and violent rhetoric in U.S. politics has escalated into violent actions against politicians in recent years.”

And China isn’t the only one. Russian officials have cast the attempted killing of Mr. Trump as proof that a conspiracy is at work to keep the GOP presidential nominee out of the White House.

For his part, Mr. Trump — complete with a bandage over the ear wounded in Saturday’s attack — appeared before cheering crowds at the Republican National Convention in Milwaukee on Monday.

Mr. Trump made headlines again Monday when he chose 39-year-old Sen. J.D. Vance of Ohio as his running mate. A Marine Corps veteran, Mr. Vance served in Iraq as a combat correspondent with the 2nd Marine Aircraft Wing.

But the selection of Mr. Vance is setting off alarm bells in some quarters. The freshman senator, like Mr. Trump, has been a vocal skeptic of U.S. aid for Ukraine. And regional news outlets wasted little time in warning about Mr. Vance’s position.

Mr. Gertz has new details on the joint naval maneuvers being held this week by the Chinese and Russian militaries. The exercises will include live-fire drills, and China’s Xinhua news agency reported that the drills will also involve anchorage defense, joint reconnaissance and early warning, joint search and rescue, and joint air defense and missile defense.

The timing of the exercises is no coincidence: They come just days after NATO labeled China a “decisive enabler” of Russia’s war in Ukraine, highlighting the growing role of Chinese companies in propping up Russia’s defense industrial base.

The military partnership, viewed inside defense and national security circles as a significant threat to U.S. power abroad, serves a strategic purpose for both nations. Researchers with the Rand Corp. recently explained in detail how Russia needs China to maintain its own great power status, and how China views Russia as a key strategic partner and a counterweight to U.S. global power.

For its part, the Biden administration has repeatedly and publicly warned Beijing that its support for Russia’s war in Ukraine is a mistake.

New reports Tuesday suggest that the leader of Hamas inside Gaza, Yahya Sinwar, is facing pressure from his own military commanders to finally agree to a cease-fire deal with Israel. Jerusalem is still pushing for a deal, too, as Israeli Prime Minister Benjamin Netanyahu faces significant pressure at home to secure the release of scores of hostages still held by Hamas. But there remain significant gaps between the two sides.

The reports come amid more Israeli military strikes in Gaza. The most recent attacks reportedly killed 24 people. They come on the heels of a major Israeli attack over the weekend that killed a top Hamas commander — but, critics say, also killed 90 Palestinians.

From Russia to Iran, America’s enemies are keeping a close eye on Mr. Biden’s mental acuity, which the president insists is “pretty damn good.”

But hostile foreign leaders, such as Russia’s Vladimir Putin, China’s Xi Jinping, and the top officials in Iran and North Korea, are keenly aware of Mr. Biden’s growing challenges trying to perform his duties effectively and could capitalize on the situation, writes Abraham Wagner, who served on the White House National Security Council staff under Presidents Nixon and Ford.

“One can only hope that the nation will not face the possible outbreak of World War III in the next four months,” he writes in a column for The Times.

• July 16-18 — 2024 Republican National Convention

• July 16 — Why Peace Remains Elusive on the Korean Peninsula, U.S. Institute of Peace

• July 16 — Connecting the Atlantic and Indo-Pacific: Reflections on the NATO Summit, Stimson Center

• July 16-19 — Aspen Security Forum, Aspen Institute