Incidents
- Frühjahrsoffensive / 1918
- Letter from: 26.3.1918, Libau
- Letter from: 27.3.1918, Charlottenburg (Berlin;Germany)
- Letter from: 28.3.1918, Libau
- Letter from: 28.3.1918, Charlottenburg (Berlin;Germany)
- Letter from: 29.3.1918, Charlottenburg (Berlin;Germany)
- Letter from: 29.3.1918, Libau
- Letter from: 31.3.1918, Charlottenburg (Berlin;Germany)
- Letter from: 1.4.1918, Libau
- Letter from: 2.4.1918, Libau
- Letter from: 3.4.1918, Libau
- Letter from: 6.4.1918, Charlottenburg (Berlin;Germany)
- Letter from: 6.4.1918, Libau
- Letter from: 8.4.1918, Libau
- Letter from: 11.4.1918, Charlottenburg (Berlin;Germany)
- Letter from: 12.4.1918, Charlottenburg (Berlin;Germany)
- Letter from: 12.4.1918, Libau
- Letter from: 13.4.1918, Charlottenburg (Berlin;Germany)
- Letter from: 17.4.1918, Libau
- Letter from: 17.4.1918, Charlottenburg (Berlin;Germany)
- Letter from: 21.4.1918, Libau
- Letter from: 29.4.1918, Libau
- Letter from: 30.4.1918, Libau
- Letter from: 2.5.1918, Libau
- Letter from: 4.5.1918, Libau
- Letter from: 8.5.1918, Charlottenburg (Berlin;Germany)
- Letter from: 13.5.1918, Libau