Are you kidding?, The French,English, Dutch,Spanish, Italians and co. have been killing themselves since the beginning of time. Fighting with neighbours is not unique to Africa, hello!
This is certainly very true. Below is a list of the biggest wars in Europe starting from 500 BC. There are countless minor wars not included. The list for Africa was so small I didn't include it (many of the wars seemed to involve Europeans in one way or another), but you can see it at:
http://en.wikipedia.org/wiki/List_of_conflicts_in_Africa500–449 BC Greco-Persian Wars
431–404 BC Peloponnesian War
395–387 BC Corinthian War
390–387 BC Celtic invasion of Rome
371 BC Battle of Leuctra
362 BC Battle of Mantinea
343–341 BC First Samnite War
334–323 BC Wars of Alexander the Great
327–304 BC Second Samnite War
323–280 BC Wars of the Diadochi
298–290 BC Third Samnite War
264–241 BC First Punic War
240-238 BC Mercenary War
218–202 BC Second Punic War
215–205 BC First Macedonian War
200–196 BC Second Macedonian War
171–168 BC Third Macedonian War
149–146 BC Third Punic War
146 BC Battle of Corinth
136–71 BC Roman Servile Wars
136–132 BC First Servile War
104–100 BC Second Servile War
73–71 BC Third Servile War
1066 Norman conquest of England
1337–1453 Hundred Years' War
1455–1485 Wars of the Roses
1496–1499 Russo–Swedish War of 1496–1499
1522–1559 Habsburg-Valois Wars
1554–1557 Russo–Swedish War of 1554–1557
1558–1583 Livonian War
1568–1648 Eighty Years' War
1590–1595 Russo–Swedish War of 1590–1595
1594–1603 Nine Years' War (Ireland)
1610–1617 Ingrian War
1618–1648 Thirty Years' War
1641–1649 Wars of Castro
1641–1653 Irish Confederate Wars
1642–1651 English Civil War
1644–1650 Scottish Civil War
1656–1658 Russo–Swedish War of 1656–1658
1667–1668 War of Devolution
1667–1683 Great Turkish War
1688–1691 Williamite War in Ireland
1700–1721 Great Northern War
1701–1713 War of the Spanish Succession
1733–1738 War of the Polish Succession
1739–1740 War of Jenkins' Ear
1740–1748 War of the Austrian Succession
1741–1743 Russo–Swedish War of 1741–1743
1756–1763 Seven Years' War
1788–1790 Russo–Swedish War of 1788–1790
1789–1799 French Revolution
1798 Irish Rebellion of 1798
1792–1815 Napoleonic Wars
1808–1809 Finnish War
1848–1866 Italian Independence wars
1848–1849 First Italian Independence War
1859 Second Italian Independence War
1866 Third Italian Independence War
1854–1856 Crimean War
1866–1866 Austro-Prussian War
1870–1871 Franco-Prussian War
1877–1878 Russo–Turkish War
1893–1896 Cod War of 1893
1897 First Greco–Turkish War
1912–1913 Balkan Wars
1914–1918 World War I
1916 Easter Rising
1917–1920 Estonian Liberation War
1918–1919 Czechoslovakia-Hungary War
1918 Finnish Civil War
1918–1920 Russian Civil War
1919–1921 Irish War of Independence
1922–1923 Irish Civil War
1936–1939 Spanish Civil War
1939-1940 Winter War
1939–1945 World War II
1958 First Cod War
1972–1973 Second Cod War
1974 Turkish Invasion of Cyprus
1975–1976 Third Cod War
1994–1996 First Chechen War
1991 War in Slovenia
1991–1995 Croatian War of Independence
1992–1995 War in Bosnia and Herzegovina
1996–1999 Kosovo War
1999–present Second Chechen War
2001 Conflict in Macedonia
2001 Conflict in Southern Serbia