I think that the answer is: The colonies developed an ability for self governing
A slave is a person that belongs to another one and is treated as property. Serfs, I'm not so sure about this now, were renting the land out from the landowners.
During WW1 (and WW2 to a degree), most young men were often drafted into the military to fight, while most young women worked in factories to produce materiel for the war effort.
Answer:
After the Chilean parliament in August 1973 declared Allende's regime illegal and ordered the armed forces to overthrow him, Augusto Pinochet (the chief of the Chilean army) stormed the seat of the executive power, during which Allende killed himself. Then, he dissolved parliament and established a ruling junta under his leadership, which retained power in the country until March 1990. He took over the presidency in December 1974 and gave his government a constitutional basis through a new constitution in 1980 (which in modified form still applies). In a second referendum in 1988, he failed to gain support for another term and resigned in favor of the Democratic candidate Patricio Aylwin. He was forced to resign as army chief in 1998 and spent the rest of his life avoiding being prosecuted for human rights violations committed during his presidency.
