War Medals:

War Medals are a new type of coin given at the end of each war that can be used to get new exclusive content in the Team Shop. The amount of War Medals that a team can win depends on the team's current League and on whether it wins or loses the war.

To receive War Medals, teams must obtain a minimum number of War coins in each war.

War Coins:

War Coins are given at the end of each war. The number of war coins you win depends upon your team's Victorious attacks.
Members of the winning team get all the War coins collected by the team, while the losers get only a fraction of the coins.