When might a mortar crew need to reposition their deployment?

When a mortar crew is subjected to enemy fire, it often becomes necessary for them to reposition their deployment. This is primarily to enhance their safety and reduce the risk of being targeted further. Staying in a fixed position during ongoing enemy fire can lead to significant casualties or destruction of equipment. The threat posed by the enemy can be a straightforward reason for changing location, ensuring that the crew can continue to effectively fulfill their mission without being compromised.

Repositioning may also be influenced by tactical considerations, such as the need to maintain an effective fire support capability while minimizing risk. Other factors, such as having sufficient supplies, mastering aiming techniques, or changes in weather, while relevant in their own contexts, do not typically drive the immediate necessity for repositioning in the same critical manner as enemy fire.