I seem to recall the world trucking along before America came around.
1600–1700
Eighty Years’ War (1568–1648)
Kalmar War (1611–13)
Thirty Years’ War (1618–48)
Powhatan War (1622–44)
Bishops’ Wars (1639; 1640)
English Civil Wars (1642–51)
First Northern War (1655–60)
War of Devolution (1667–68)
King Philip’s War (1675–76)
War of the Grand Alliance (1689–97)
King William’s War (1689–97)
1700–1800
Second Northern War (1700–21)
War of the Spanish Succession (1701–14)
War of the Emboabas (1708–09)
Carnatic Wars (1746–48; 1749–54; 1758–63)
Queen Anne’s War (1702–13)
Yamasee War (1715–16)
War of the Polish Succession (1733–38)
War of Jenkins’ Ear (1739–48)
War of the Austrian Succession (1740–48)
King George’s War (1744–48)
French and Indian War (1754–63)
Silesian Wars (1740–42; 1744–45; 1756–62)
Seven Years’ War (1756–63)
Lord Dunmore’s War (1774)
Rohilla War (1774)
American Revolution (1775–83)
First Maratha War (1775–82)
War of the Bavarian Succession (1778–79)
Cape Frontier Wars (1779–1879)
French Revolution (1787–99)
French revolutionary wars (1792–1801)
1800–1900
Cape Frontier Wars (1779–1879)
French revolutionary wars (1792–1801)
War of the Oranges (1801)
Tripolitan War (1801–05)
Second Maratha War (1803–05)
Third Maratha War (1817–18)
Napoleonic Wars (1803–15)
Black War (1804–30)
Peninsular War (1808–14)
War of 1812 (1812–15)
Creek War (1813–14)
War of Greek Independence (1821–32)
Padri War (1821–37)
Naning War (1831–32)
Pastry War (1838–39)
Mexican-American War (1846–48)
Crimean War (1853–56)
Bleeding Kansas (1854–59)
American Civil War (1861–65)
War of the Triple Alliance (1864/65–70)
Seven Weeks’ War (1866)
Selangor Civil War (1867–73)
Franco-German War (1870–71)
Acehnese War (1873–1904)
Red River Indian War (1874–75)
Serbo-Turkish War (1876–78)
Anglo-Zulu War (1879)
War of the Pacific (1879–83)
Gun War (1880–81)
Sino-French War (1883–85)
Serbo-Bulgarian War (1885–86)
Sino-Japanese War (1894–95)
Spanish-American War (1898)
Philippine-American War (1899–1902)
South African War (1899–1902)
The War of a Thousand Days (1899–1903)
After America imposed the Pax-Americanna there were no more major power wars. The world, since 1945 has seen the greatest period of peace and prosperity in human history. Take America out of the equation and we’re back to continuous war, but with nuclear, chemical and biological weapons. All that Global Order stuff...history. The reason for the Russian invasion is once there were no more mean, late night tweets, the Russians realized the guard dog had retired. The Russian invasion is a taste of what the world is going to look like. These won’t just be in some remote place, but divide the US and all those powers will be backing the extreme political movements on both new Americas. There will be no keeping them out and they’ll provoke us to fight each other. Divide up America and the world is headed towards a huge depopulation and a new dark age. But with nukes.