One major problem that has resulted from globalization in the 20th and 21st century is that the diseases are able to spread around the world more quickly.
Globalization has reached a point that the problems of one country are likely to affect the whole world since the world is nowadays like a global village.
mark me brainliest XD
Answer: Following the assassination of Franz Ferdinand, Austria Hungary was hella mad about it, so they went to Germany, and was like hey, help us get revenge on Serbia. So the two of them teamed up and declared war on Serbia on July 28th. Shortly after (a couple of days) Germany declares war on Russia, and then after Serbia's ally invaded France, that pushed Great Britain to declare war on Germany.
(hope this helps)
Charles X became king of France in 1824