The U.S. military is likely headed to the moon to counter multiplying threats in space from China and Russia, including Moscow’s reported plan to put anti-satellite nuclear weapons in orbit.

House Appropriations Defense Subcommittee Chairman Rep. Ken Calvert says he’s bracing for China to militarize the moon and for Russia to put a megaton bomb in low Earth orbit. The California Republican last week told the Hill & Valley Forum, an annual gathering of top tech and government officials in Washington, that the “horse has left the barn” on U.S. efforts to prevent the militarization of space.

If a low-orbit nuclear bomb detonated, it would completely shut off space, according to Tom Mueller, Impulse Space CEO who previously helped start SpaceX, the private rocket design and launch firm. “Not only would the radiation just destroy everything on that side of the Earth immediately, but then the collisions of all the debris would continue and it would be basically low Earth orbit [that] would be unusable for possibly for decades,” Mr. Mueller told the Hill & Valley Forum.

The Pentagon is not commenting on reports that the Biden administration last week stopped a shipment of American ammunition to Israel, the latest development in a growing rift between the two allies over Jerusalem’s war against the Palestinian militant group Hamas. 

Citing two unnamed Israeli officials, Axios reported Sunday that the administration held up the shipment of ammunition that was set to be delivered to the Israeli Defense Forces. Axios did not elaborate on what the ammunition was or the rationale for holding it back, but the reported halt coincided with Secretary of State Antony Blinken’s increased pressure on Israel to reach a cease-fire.

The U.S. also has warned Israel against moving forward with a military operation in the city of Rafah, home to an estimated 1 million displaced Palestinian civilians from elsewhere in Gaza. Israel says thousands of Hamas fighters are hiding there. During a visit to Israel last week, Mr. Blinken said the U.S., “cannot, will not support a major military operation in Rafah absent an effective plan to make sure that civilians are not harmed.” He added that U.S. officials have thus far “not seen such a plan.”

Israel on Sunday shut down Al Jazeera’s operations in the country, raided its offices and confiscated its broadcast equipment in what is thought to be the first time the Jewish state has forcibly shuttered a major foreign news channel.

The move is the culmination of a long-running feud between the Qatari government-owned news network and the government of Israeli Prime Minister Benjamin Netanyahu. He and other Israeli officials have accused Al Jazeera of an extreme anti-Israel bias and suggested that employees of the network participated in the Oct. 7 Hamas terrorist attack on Israel.

The network has vehemently denied those charges. Still, Mr. Netanyahu said his government had little choice but to shutter the channel’s operations inside Israel. While Al Jazeera is the most prominent satellite news network broadcasting in Arabic, its operations have outraged other governments in the region, most notably Saudi Arabia.

Iran has unveiled a new drone designed to “loiter” over a target area until launching an attack, a weapon similar to the Russian uncrewed aerial vehicle used in Ukraine.

The Islamic Republic News Agency reported last week that the drone is designed for counter-ambush operations and is expected to increase the combat capabilities of the Islamic Revolutionary Guard Corps. “The Iranian unmanned aerial vehicle (UAV) is said to bear similarities to the Russian-built ZALA Lancet kamikaze drone,” IRNA said.

Iran has become a significant producer of combat drones in recent years and has shipped a number of them to Russia for its war against Ukraine.

Pentagon Correspondent Mike Glenn has an up close and personal account of the “Hurricane Hunters” of the Air Force Reserve’s 53rd Weather Reconnaissance Squadron.

Based at Keesler Air Force Base near Biloxi, Mississippi, the 53rd WRS is responsible for hurricane reconnaissance missions in the Atlantic Ocean, the Caribbean Sea, the Gulf of Mexico and the eastern and central Pacific Ocean. Not only are the Hurricane Hunters the only such unit in the Air Force, but they’re also the only ones in the world doing their particular mission.

If former President Donald Trump wins the upcoming U.S. presidential election, the mainstream media should get the credit, according to American Culture Project CEO John Tillman.

“Don’t get me wrong: The media hate the former president more than most. But in their blatant attempts to defeat him, journalists are making misleading and even false claims in support of President Biden,” Mr. Tillman writes. “Americans of all political stripes recognize the attempt to fool them, which may spark a very human response. Instead of doing what the press wants, voters may assert their independence and show their anger at the establishment by reelecting Mr. Trump.”

Mr. Tillman adds: “The media’s misinformation and disinformation campaign is largely focused on two issues: inflation and crime. Not coincidentally, these are two of the top issues for voters, according to the most recent Harvard/Harris poll.”

• May 6 — Launch of Chinese Handcuffs: How China Hijacked the Environmental Agenda, The Heritage Foundation.

• May 7 — A Conversation with House Armed Services Committee Ranking Member Adam Smith, American Enterprise Institute.

• May 7 — Shifting geopolitics in the age of AI: A conversation with Sam Altman, Brookings Institution.

• May 7-8 — AI Expo for National Competitiveness 2024, Special Competitive Studies Project.

• May 8 — Advancing the Business Case for the Americas, Council of the Americas.

• May 9 — The Erosion of Hong Kong’s Autonomy Since 2020: Implications for the United States, Center for Strategic and International Studies.