 Complete the following phrase:  During the German spring offensive of 1918, Operation Michael, Melvills brigade played key roles in holding and stabilising the lines in the New Zealand sector. Well regarded for his capable leadership, he also led the New Zealand Division from late-June to mid-July 1918 while its nominal commander, Major General Andrew Russell was on sick leave. In the Hundred Days Offensive, his leadership of 1st Infantry Brigade saw it breach the Hindenburg Line and capture the town of Crevecoeur during the 