Why did Britain, America and France attack Syria?

The reasons why the United States, Britain and France attacked Syria are as follows:

1, the United States is showing determination and toughness. After all, in the United States, only a few people like Russia and Syria, and most people are hostile to them. Therefore, playing Syria can get flowers and applause. In addition, with the mid-term elections approaching, Trump's trade war with China or his tomahawk attack on Syria are effective means to shift the focus.

2. China is holding the largest exercise and ship-watching in China's history in the South China Sea, which is larger than the navies of most countries in the world. Trump certainly can't influence the ship-reading style, but it is ok to be tough on Syria.

3. As far as the United States is concerned, the supporters of the Syrian opposition are all allies of the United States (such as Saudi Arabia and Israel), so attacking Syria is also the proper performance of the leader of the military alliance. Otherwise, why convince the public?

4. The Syrian opposition is in a bad form and is dying. Britain and the United States should support it. Attacking the Syrian airport and discrediting the political axe of Bashar in Syria are all forms of support for the opposition.

The development of the situation in Syria forced the United States to take action. Russia has joined the Syrian battlefield for more than two years, and Bashar's political axe has occupied about 20% of Syria's territory to more than half now. Not only was it not defeated by the opposition supported by the United States, but it gradually took the initiative in the battlefield. The United States does not want to see Bashar's political axe expand its victory, so it has to take action.