How were the years 1917 and 1918 different for Allies in the world war I ?​

In 1917, during World War I, the armies on the Western Front continued to change their fighting methods, due to the consequences of increased firepower, more automatic weapons, decentralisation of authority and the integration of specialised branches, equipment and techniques into the traditional structures of infantry .

Explanation:

b. they tried to evict the squatters from the area.

so sorry if wrong