It was originally constructed to prevent foreign invasion, specifically from the Mongolians. Hope this helps!
Answer:
Strike action, also referred to as labor strike, labor strike, or just strike, is a job stoppage, sparked by workers' widespread refusal to work. In response to employee grievances, a strike normally takes place. ... Strike actions were swiftly made illegal in most nations, as plant owners had much more control than workers.
Explanation:
<span>It provided badly needed funds and naval support.</span>
