War

"War" is the 15th episode of the second season of Young Justice, and the 41st of the overall series. It aired on February 9, 2013.

Logline
A conqueror from another world becomes a wild card in an intergalactic game of supremacy – placing planet Earth square in the jackpot.

Title
The title refers to the Warworld, the giant satellite that Mongul controls. His threats to Earth could be considered an act of war, which result in the Justice League, the Team, the world's military forces and even the Reach responding. It may also imply that events are now leading to a war with the Reach, given that Blue Beetle has revealed himself to the the Team as a Reach operative and taken the key to Warworld.

Cast and characters
! colspan="3" | Uncredited ! colspan="3" | Non-speaking roles
 * Keith David
 * Mongul
 * rowspan="2" | Miguel Ferrer
 * colspan="2" | Vandal Savage
 * Tribune
 * rowspan="2" | Crispin Freeman
 * colspan="2" | Arsenal
 * Galet Dasim
 * rowspan="3" | Phil LaMarr
 * colspan="2" | Green Beetle
 * colspan="2" | Ambassador
 * colspan="2" | Aquaman
 * Eric Lopez
 * colspan="2" | Blue Beetle
 * Jesse McCartney
 * colspan="2" | Nightwing
 * rowspan="3" | Masasa Moyo
 * colspan="2" | Bumblebee
 * colspan="2" | Cat Grant
 * colspan="2" | Scientist
 * rowspan="2" | Nolan North
 * colspan="2" | Superboy
 * colspan="2" | Superman
 * rowspan="3" | Kevin Michael Richardson
 * colspan="2" | Guardian
 * colspan="2" | Green Lantern
 * colspan="2" | Martian Manhunter
 * Alyson Stoner
 * colspan="2" | Batgirl
 * Michael T. Weiss
 * colspan="2" | Captain Atom
 * colspan="2" | Bumblebee
 * colspan="2" | Cat Grant
 * colspan="2" | Scientist
 * rowspan="2" | Nolan North
 * colspan="2" | Superboy
 * colspan="2" | Superman
 * rowspan="3" | Kevin Michael Richardson
 * colspan="2" | Guardian
 * colspan="2" | Green Lantern
 * colspan="2" | Martian Manhunter
 * Alyson Stoner
 * colspan="2" | Batgirl
 * Michael T. Weiss
 * colspan="2" | Captain Atom
 * colspan="2" | Green Lantern
 * colspan="2" | Martian Manhunter
 * Alyson Stoner
 * colspan="2" | Batgirl
 * Michael T. Weiss
 * colspan="2" | Captain Atom
 * Michael T. Weiss
 * colspan="2" | Captain Atom
 * colspan="2" | Captain Atom
 * colspan="3" | Kroloteans
 * colspan="3" | Kroloteans
 * colspan="3" | Adam Strange
 * colspan="3" | Batman
 * colspan="3" | Beast Boy
 * colspan="3" | Black Beetle
 * colspan="3" | Black Canary
 * colspan="3" | Captain Marvel
 * colspan="3" | Doctor Fate
 * colspan="3" | Hawkman
 * colspan="3" | Hawkwoman
 * colspan="3" | Icon
 * colspan="3" | Impulse
 * colspan="3" | Red Tornado
 * colspan="3" | Robin
 * colspan="3" | Rocket
 * colspan="3" | Sphere
 * colspan="3" | Tseng Dangun
 * colspan="3" | Wolf
 * colspan="3" | Wonder Girl
 * colspan="3" | Wonder Woman
 * colspan="3" | Icon
 * colspan="3" | Impulse
 * colspan="3" | Red Tornado
 * colspan="3" | Robin
 * colspan="3" | Rocket
 * colspan="3" | Sphere
 * colspan="3" | Tseng Dangun
 * colspan="3" | Wolf
 * colspan="3" | Wonder Girl
 * colspan="3" | Wonder Woman
 * colspan="3" | Sphere
 * colspan="3" | Tseng Dangun
 * colspan="3" | Wolf
 * colspan="3" | Wonder Girl
 * colspan="3" | Wonder Woman
 * colspan="3" | Wonder Girl
 * colspan="3" | Wonder Woman
 * colspan="3" | Wonder Woman
 * colspan="3" | Wonder Woman

Continuity

 * The Reach release part of their hidden fleet, which was seen in "Before the Dawn".

Trivia

 * Mongul's recurring invoking of his mercy is a reference to one of Mongul's weapons of choice in the comics, the Black Mercy.

Unanswered questions

 * Why did Vandal Savage goad Mongul to move in on Earth?
 * Who was the other tyrant that ousted Mongul from his dictatorship on his planet?
 * What use does the Reach have for the key of the Warworld?