Fort Stevens guarded the mouth of the Columbia River in Oregon. This fort was the only military installation in the continental United States to receive hostile fire during World War II. On the night of June 21, 1942, a Japanese submarine fired 17 shells at it, but caused no damage. (See Attacks on United States territory in North America during World War II.) Like many others in the Pacific Northwest, the fort was built to defend the mouth of the Columbia from potential British attack during ongoing regional tensions related to the San Juan Islands Dispute of 1859-70, and remained relevant during the Alaska Boundary Dispute when British-American tensions were high and once again on the brink of war. Columbia River Gorge, Washington or North side The Columbia River (French: fleuve Columbia) is a river situated in British Columbia and the Pacific Northwest of the United States. ... Official language(s) None Capital Salem Largest city Portland Area  - Total  - Width  - Length  - % water  - Latitude  - Longitude Ranked 9th 255,026 km² 420 km 580 km 2. ... Combatants Allies: • Soviet Union, • UK & Commonwealth, • USA, • France/Free France, • China, • Poland, • ...and others Axis: • Germany, • Japan, • Italy, • ...and others Casualties Military dead: 18 million Civilian dead: 33 million Full list Military dead: 7 million Civilian dead: 4 million Full list World War II, also known as the Second World... June 21 is the 172nd day of the year (173rd in leap years) in the Gregorian calendar, with 193 days remaining. ... This article is about the year. ... Attacks on United States territory in North America during World War II by the Axis Powers were rare, mainly due to North Americas geographical separation from the central theaters of conflict in Europe and Asia. ... Darker red states are always part of the Pacific Northwest. ... The Alaska Boundary Dispute was a territorial dispute between the United States of America and Canada (then a British dominion), and at a subnational level between the territory of Alaska on the U.S. side vs. ...

Built near the end of the American Civil War, Fort Stevens and its gun batteries protected the river until shortly after World War II. It was the primary military installation in the Three Fort Harbor Defense System at the mouth of the Columbia. The other two forts in the system were Fort Canby and Fort Columbia (Washington). Combatants United States of America Confederate States of America Commanders Abraham Lincoln+ Ulysses S. Grant Jefferson Davis Robert E. Lee Strength 2,213,363 1,064,200 Casualties KIA: 110,100 Total dead: 359,500 Wounded: 275,200 KIA: 74,500 Total dead: 198,500 Wounded: 137,000+  The American...

Fort Stevens is preserved within Fort Stevens State Park, part of Lewis and Clark National and State Historical Parks. Lewis and Clark National and State Historical Parks, in the vicinity of the mouth of the Columbia River, commemorate the Lewis and Clark Expedition. ...

External links

• Fort Stevens Structures
• Friends of Old Fort Stevens