yet another reason for Mexicans to enter the United States in search of higher wage jobs. With the growing concern about unassimilated immigrants, and the diplomatic and security issues surrounding illegal border crossings, popular pressure caused the INS to increase its raids and apprehensions beginning in the early 1950s leading up to Operation Wetback. The Korean War and the Red Scare also prompted tighter border security to prevent presumed communist infiltration. Mass deportations also affected the growing patterns in California and Arizona; although the United States had promised farm owners additional Bracero labor. During the Bracero program, "an estimated 4.6 million workers entered America legally, while other immigrants that were turned away still entered" because of the work opportunities occurring in the southwest. California then became dependent on the workers while Texas continued to hire workers illegally after this was banned by the federal government, however because of the agricultural demand this was overlooked. While both countries were benefitting from this program in different ways, the large influx of immigration caused Eisenhower to end the program with Mexico. Border control leading up to Operation Wetback In 1943 more United States Border Control Officers were posted along Mexico's northern border. Pressure from well-connected Mexican land and farm owners frustrated with the Bracero program prompted the Mexican government to call a meeting in Mexico City with four agencies of the United States government: the Department of Justice, the Department of State, the INS, and the Border Patrol. This meeting resulted in increased border patrol along the United States–Mexico border by the United States, yet illegal immigration persisted. One of the main issues was that increased pressure by the Mexican government produced more deportations, but the deported Mexicans rapidly reentered the United States. To combat this, the Mexican and American governments developed a strategy in 1945 to deport Mexicans deeper into Mexican territory by a system of planes, boats, and trains. However, in 1954, negotiations surrounding the bracero program broke down, prompting the Mexican government to send 5000 troops to its border with the United States. In correspondence with assistants to President Dwight Eisenhower, Harlon Carter, head of the Border Patrol, planned Operation Cloud Burst, which requested an executive order to mobilize the military to round up illegal entrants at the southwestern border and to raid migrant camps and businesses in the interior of the United States. In deference to the Posse Comitatus