What spirit can you learn from the Red Army's long March to capture Luding Bridge?

From the battle of the Red Army's Long March to capture Luding Bridge, you can appreciate the soldiers' incomparable loyalty and firm belief in the revolutionary ideal and cause, show the proletarian optimism spirit that is not afraid of sacrifice and dares to win, and show the noble character of taking the overall situation into account, strict discipline and close unity. These constitute the great Long March spirit: the spirit of not being afraid of sacrifice, going forward, going forward, the spirit of going forward, the spirit of unity and mutual assistance, the spirit of perseverance and overcoming difficulties ~