cuadro comparativo de las características principales de la primera y segunda etapa de la guerra fría

nativists tried to get rid of the immigrants as they thought they were going to ruin the u.s.  

nothing certain is known about what happened, but it seems that the country declined gradually, perhaps due to bad government, or, more likely, due to a series of bad harvests, which resulted in widespread and recurrent famine.

c) troops march forward in close formation against newer, more accurate weapons

b. they tried to evict the squatters from the area.

so sorry if wrong