The Mexican-American War, which took place in 1846 - 1848 was a result of the US annexation of Texas.
At the time, Mexico still owned Texas, it was a part of its territory until America incorporated that state into its own territory in 1945. Obviously, this sparked an armed conflict between two countries which ended with Mexico accepting the annexation after the US paid a lot of money for it.
Water use in terms of the tradition of acequia has more spiritual meaning and traditional beliefs and customer which endured over the decades. Water use on today's modern society is different as it is neither exclusive to the community bound with the territory of an aequia. However they are struggling to preserve their old ways with two factors, one the political and laws about views water resources and also the demand as population grows.
Answer:
by not drowning it under the water