Russia came to the aid of Serbia because they were slavs and the Czar felt a special kinship to Serbia and not Austria-Hungary. Austria-Hungary were allied with the Ottoman Empire, Germany and Bulgaria. Serbia wanted its independence from the Hapsburgs and knew that the Romanovs would support them militarily.
Astro-Hungary declared war on Serbia. In turn Russia came to Serbia's aid with a few other countries.
Serbia came 4th twice in 1930 and in 1962 as Yugoslavia. As just Serbia, they have only been in the 2010 world cup, being knocked out in the group stage.
When Russia found out that Austria-Hungary was declaring war on Serbia, they came into alliance with Serbia for several reasons.
Russia
Because of his death Austria-Serbia declared war on Serbia, Russia came to defense and soon the World War one began in Europe.
Serbia used to be called Yugoslavia but after the war that occured in 1990's, the religions separated all the countries forming a single name. Serbia and Montenegro were one country for awhile but they separated into two a couple years back
what other countries came into being in the years 1945-50after the second world war2make a list with the dates of their independence
Russia and Serbia came into conflict with Austria-Hungary over the assassination of a member of the Austrian royal family
The expression "the third world" came about during the Cold War - it referred then to countries which were not within the sphere of influence of either America or Russia. From that it came to refer to the 'underdeveloped' countries of the world.
There were a total of 32 countries at the 2010 world cup.
Croatia, Slovenia, Serbia, BiH and Montenegro were once Yugoslavia.
Germany and Italy and Japan.