Powers can influence any region as long as they have the capacity to achieve two things: punishment and reward. After World War II, the position of the US was almost neutral, condemning European countries for the Sinai War against Nasser and pressuring Israel for its nuclear plan. The strong Soviet penetration in the Arab countries, with the Egypt-Czechoslovakia (1955) weaponry agreement, pushed the US into the Middle East. At the time, Israel purchased weapons from France and the only aid the US provided Israel was food. During the presidency of Lyndon Johnson, the US modified its posture to strong support to Israel, though not unconditional, because they thought that the Arab countries (Egypt, Syria) were irreversibly pro-Soviet. For the US (2019) the three main allies in the Middle East are Saudi Arabia, Israel and Qatar. Many times, its allies defend contradicting interests. The US support to Israel is economic, military, diplomatic and strategic; strong support that has undergone its ups and downs. After signing the Peace Agreement with Egypt (1979), the US has rewarded Israel with 3 billion dollars a year: 74% must be spent in purchasing goods and services from the US. Egypt also receives 2.2 billion a year. For Israel, the economic support of the US (2019) is not existential. In the diplomatic arena, the US used its veto power in 15 out of 24 occasions, between 1991 and 2011. During the presidency of Obama, this support decreased, and in just days Trump increased it again.
For the US, Israel is a stable democracy, a strategic ally. The deceased Republican Senator Jesse Helms used to call Israel “the United States aircraft carrier in the Middle East”, justifying the value of Israel in the region. At present, Israel is a partner of the US in many projects, as Israel contributes to the alliance with its technological capacity.