Ellwood Oil Field
... that a Japanese submarine shelled the Ellwood Oil Field during World War II, the first direct attack by an enemy power on the mainland United States since the War of 1812?
... that a <a href="./Empire_of_Japan" id="mwCig" rel="mw:WikiLink" title="Empire of Japan">Japanese</a> <a href="./Submarine" id="mwCik" rel="mw:WikiLink" title="Submarine">submarine</a> shelled the <b id="mwCio"><a href="./Ellwood_Oil_Field" id="mwCis" rel="mw:WikiLink" title="Ellwood Oil Field">Ellwood Oil Field</a></b> during <a href="./World_War_II" id="mwCiw" rel="mw:WikiLink" title="World War II">World War II</a>, the first direct attack by an enemy power on the mainland United States since the <a href="./War_of_1812" id="mwCi0" rel="mw:WikiLink" title="War of 1812">War of 1812</a>?