十万青年十万兵

100,000 young men today, 100,000 warriors forever.

Refers to the "Sichuan clique army":https://en.wikipedia.org/wiki/Sichuan_clique during the "Battle of Shanghai":https://en.wikipedia.org/wiki/Battle_of_Shanghai of the Second Sino-Japanese war, which lost over 170,000 troops in the battle, leaving only 2,000 survivors.