 Nyorera kupfuurira kweiyi ndima - Pakutanga kweHondo Yenyika I, Wachser akanga atanga kushanda semudzidzisi muKiev, uye kunyora nhetembo dzechiHebheru nechiYiddish uye nhetembo. Muna 1916, akatora chinzvimbo chekudzidzisa muchikoro chevapoteri muBaku, asi akamanikidzwa kutiza guta iri pakati pekutanga kwehondo yeArmenian-Azerbaijani. Akakurumidza kuparadza zvakawanda zvezvinyorwa zvake asati aenda, kunyange zvazvo mukoma wake akakwanisa kuponesa chikamu chakanga chasara chebasa rake. Wachser akapedza nguva muOdessa asati agara mutaundi rePodolian reKrivozer. 