Why did Mexican immigration to the US increase during and after the Mexican Revolution?
Relatively cheap land. Stable politics.
How did the crop rotation system that developed in Britain during the agricultural revolution increase crop yields?
The Mexican Independence War (1810-1821) was the struggle for independence from Spain, led by criollos - people of Spanish descent born in the Americas. There were 23,000 people killed during such conflict. The Mexican Revolution (1910-1921) was a conflict between the Mexican people - specially workers and peasants - against Mexican federal government troops, with human rights and land reform as the main drivers of such conflict. Most sources suggest between 1 million and 2…
I guess you mean during their independence war. No, they fought their war on their own, without outside interference. --- In the early days of the Mexican Revolution (ca1910-ca1930), some foreigners came in from Los Angeles to help the Flores Maglón brothers and their Partido Liberal Mexicano. There were European and U.S. financial backers to the Conservative groups. Mostly, though, the Mexican Revolution was a civil war.