1954 in the Vietnam War establishment of a demilitarized zone 10 kilometers (6 miles) wide separating the two provisional states. Viet Minh soldiers were to withdraw to the north and military forces allied to France to the south. Free movement between north and south was granted for 300 days. The Final Declaration stated that the demarcation line at the 17th parallel between North and South Vietnam was only "provisional and should not in any way be interpreted as constituting a political or territorial boundary." Elections by secret ballot were to be held in July 1956 to unite the north and the south into a single
49th parallel north the 1846 Oregon Treaty. This agreement divided the Oregon Country between British North America and the United States by extending the 49th parallel boundary to the west coast, ending in the Strait of Georgia; it then circumvents Vancouver Island through Boundary Pass, Haro Strait, and the Strait of Juan de Fuca. This had the side effect of isolating Point Roberts, Washington. Although parts of Vancouver Island and parts of Eastern Canada are south of the 49th parallel, and parts of the United States (Alaska, Northwest Angle) are north of it, the term "49th parallel" is sometimes used metonymically to refer