| Date | Event |
|---|---|
| April 01 1918 | Royal Air Force Created By A Merger |
| April 08 1918 | Entertainers Sell War Bonds In New York |
| April 09 1918 | Germans Stop Offensive In Flanders |
| April 09 1918 | Bessarabia Allies With The Kingdom Of Romania |
| April 20 1918 | Red Baron Shoots Down 80th Victim |
| April 21 1918 | WWI: Red Baron Shot Down Over France |
| April 23 1918 | British Raid Attempts Destruction Of Belgian Port |
| April 24 1918 | British Mark IVs Meet Three German A7Vs |