I don't understand

I don't understand:

Read this first please:

On May 20, 2017, U.S. President Donald Trump and Saudi Arabia's King Salman bin Abdulaziz Al Saud signed a series of letters of intent for the Kingdom of Saudi Arabia to purchase arms from the United States totaling US$110 billion immediately,[1][2] and $350 billion over 10 years.[3][4] The intended purchases include tanks, combat ships, missile defense systems, as well as radar, communications and cybersecurity technology. The transfer was widely seen as a counterbalance against the influence of Iran in the region[5][6] and a "significant" and "historic" expansion of United States relations with Saudi Arabia.[7][8][9][3][10]

This is just one example I'm citing.

I don't mean to target just Saudi Arabia -- Many other countries as well including my own country -- spend literally zillions of American dollars for defense.

Read this one as well please:

In 2012 it was estimated that, using a poverty line of $1.25 a day, 1.2 billion people lived in poverty.[4] Given the current economic model, built on GDP, it would take 100 years to bring the world's poorest up to the poverty line of $1.25 a day.[5] UNICEF estimates half the world's children (or 1.1 billion) live in poverty.[6]

The World Bank forecasted in 2015 that 702.1 million people were living in extreme poverty, down from 1.75 billion in 1990.[7] Extreme poverty is observed in all parts of the world, including developed economies.[8][9] Of the 2015 population, about 347.1 million people (35.2%) lived in Sub-Saharan Africa and 231.3 million (13.5%) lived in South Asia. According to the World Bank, between 1990 and 2015, the percentage of the world's population living in extreme poverty fell from 37.1% to 9.6%, falling below 10% for the first time.[10] In public opinion around the world people surveyed tend to incorrectly think extreme poverty hasn't decreased.[11][12]

There is disagreement amongst expert as to what would be considered a realistic poverty rate with one considering it "an inaccurately measured and arbitrary cut off".[13] One estimate places the true scale of poverty much higher than the World Bank, with an estimated 4.3 billion people (59% of the world's population) living with less than $5 a day and unable to meet basic needs adequately.[14] It has been argued by some academics that the neoliberal policies promoted by global financial institutions such as the IMF and the World Bank are actually exacerbating both inequality and poverty.[15][16]

My point is if we'd route / channelize this sum of money to eradicate poverty -- Just -- let's say 25% of it -- We'd be alleviating dire poverty, pain and suffering. We'd be saving lives.

That's all I wanted to share with you people.

Source: https://en.wikipedia.org/wiki/Poverty