From the article:

In recent days, Kuwait has accused Iran of striking energy and water plants, igniting fires that have forced officials to suspend operations at several facilities. Earlier in the war, officials in Bahrain and Iran said desalination plants in those countries had also come under fire.

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Desalination plants produce 90 percent of Kuwait’s drinking water, according to an analysis by the French Institute of International Relations. Oman (86 percent) and Saudi Arabia (70 percent) also rely heavily on the technology.

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Iran does not lean as heavily on desalination plants as its neighbors, but has faced severe water shortages in recent years. Iran has accused U.S. strikes of disabling water infrastructure in locations including an island where officials say water access for 30 villages was affected. The Pentagon and Israel denied responsibility for those attacks.

Iran and the United States have accused each other of targeting sensitive infrastructure during the latest exchanges of attacks, and Iran has said it would respond to any U.S. attacks on its own infrastructure by hitting similar targets in nearby countries that are allied with the United States.