On Sunday, a San Diego-based warship fired on an Iranian cargo ship attempting to run a United States-imposed blockade on Iranian ports.

Tuesday on Midday Edition, we talk about the warship's connections to San Diego and what the action could mean for peace efforts between the U.S. and Iran.

Then, one-fifth of the world's oil and natural gas passes through the Strait of Hormuz, which Iran closed in response to the U.S. blockade. We examine the impacts of the war on the global economy and energy supply.

Guests:

• Andrew Dyer, military and veteran affairs reporter, KPBS
• David Victor, professor of innovation and public policy, UC San Diego School of Global Policy and Strategy