Conversation so far:
When did Emiliano Zapata first begin to feel pressure?
the disintegration of the revolution outside of Morelos put pressure on the Zapatistas.
Was he the leader of the group?
As General Arenas had turned over to the constitutionalists, he had secured peace for his region and he remained in control there.
How did he handle the pressure beyond this?
What were his plans?
Zapata began looking for allies among the northern revolutionaries and the southern Felicistas, followers of the Liberalist Felix Diaz.
DId those groups agree to fight on his side?
He sent Gildardo Magana as an envoy to communicate with the Americans and other possible sources of support.

Question: What was the reaction from those groups during the struggle?
Self-contained rewrite: What was the reaction from  the northern revolutionaries and the southern Felicistas during the Emiliano Zapata's struggle to control the region?