Significant numbers of Americans have criticized the conduct of Saudi Arabia in its ongoing intervention in the Yemeni Civil War, including alleged war crimes such as bombing of hospitals, gas stations, water infrastructure, marketplaces and other groups of civilians, and archaeological monuments; declaring the entire Saada Governorate a military target; use of cluster bombs; and enforcing a blockade of food and medical supplies that has triggered a famine. Critics oppose U.S. support of Saudi Arabia for this operation, which they say does not benefit the national security interests of the United States, and they object to the United States selling arms to Saudi Arabia for use in Yemen.