长征

Long March (retreat of the Red Army 1934-1935)

expedition / long journey

length / long / forever / always / constantly

chief / head / elder / to grow / to develop / to increase / to enhance

journey / trip / expedition / to go on long campaign / to attack

to invite / to recruit / to levy (taxes) / to draft (troops) / phenomenon / symptom / characteristic sign (used as proof) / evidence