TASK DEFINITION: Rewrite each original sentence in order to make it easier to understand by non-native speakers of English. You can do so by replacing complex words with simpler synonyms (i.e. paraphrasing), deleting unimportant information (i.e. compression), and/or splitting a long complex sentence into several simpler ones. The final simplified sentences need to be grammatical, fluent, and retain the main ideas of their original counterparts without altering their meanings.
PROBLEM: The International Union for Conservation of Nature and Natural Resources (IUCN) is an international organization dedicated to natural resource conservation.

SOLUTION: The International Union for the Conservation of Nature and Natural Resources (IUCN) is an international organization devoted to the conservation of natural resources.

PROBLEM: He received the punishment of being forced to shoot an apple off the head of his son, Walter, or else both would be executed.

SOLUTION: His punishment was having to shoot an apple off the head of his son, Walter. If he did not, both would be executed.

PROBLEM: The formation of Armenian revolutionary groups began roughly around the end of the Russo-Turkish War of 1878 and intensified with the first introduction of Article 166 of the Ottoman Penal code 166, and the raid of Erzerum Cathedral.

SOLUTION:
The creation of Armenian revolutionary groups began at the end of the Russo-Turkish War of 1878. It increased speed after the Article 166 of the Ottoman Penal code 166, and the raid of Erzerum Cathedral.