Höhndorf volunteered for aviation upon the outbreak of war.

The division was embodied upon the outbreak of war.

Upon the outbreak of war, air raid sirens sounded throughout Israel.

Upon the outbreak of war with Mexico in 1846, Hancock worked to secure himself a place at the front.

The plans were, in any event, put on hold upon the outbreak of war in 1914.

Upon the outbreak of war they both volunteered for the British Army.

This work paid off when production needed to be initiated upon the outbreak of war.

He enlisted in the Army upon the outbreak of war in 1939, initially as a Private.

In 1939 upon the outbreak of the war he had attempted to enlist, but was rejected on medical grounds for a "bumpy heart".

Upon the outbreak of war, the company, along with most other manufacturing enterprises, shifted to war work.