Sibling Rivalry from a Common Mother

The Peach Arch at the Border Between Washington State and British Columbia
The Other Side of the Arch States "Children of a Common Mother"

The US and Canada share the longest, undefended border in the world. Both celebrate their national days in July. Canada celebrates Canada Day on July 1 and the US celebrates Independence Day on July 4. 

After the War of 1812, Britain and the US agreed to settle their disputes peacefully. Thankfully, we have managed to avoid any real fights since then. Still, there remain many differences. The video lists 25, though I'm not sure I would really cite Quebec as Canada's Texas....