What was Winston Churchill's motivation for opposing the appeasement policy engineered by Neville Chamberlain?

Churchill felt he was right and Chamberlain was wrong.

History shows that Churchill was right. Germany invaded Poland in spite of the treaty (agreement) that Chamberlain had gotten from Hitler.

It took further invasions before Chamberlain was replaced by Churchill. Part of what put Churchill in office was his intuition that Chamberlain was being played by Hitler.

Motivation? Churchill covered that and told that himself in his award winning 5 book series (he wrote himself)...The Second World War.

wasnt neville chamberlain a nazi sympethiser . Who wouldnt anyone query him anyway .

Chamberlain was naive depending on setting British policy towards Nazi Germany based on wishful thinking. Once Germany marched into Czechoslovakia after promising not to, I think that was a dead give away. Certainly Churchill could see that you couldn't trust Hitler's word, and that he had a pattern or precedence of doing these things. Churchill was the realist. Chamberlain was not.  

By that time, Hitler already had proven his word could not be trusted. Chamberlain's piece of paper was worthless. 

Trump satisfied countless gullible people w/ his BS and lies. Hitler's strategy is still relevant. "Tell them and they believe ... they just do." ... -trump (according to Billy B.). Words are supposed to have consequences. When someone is not held accountable for false ones, expect them to continue. 

The GOP senate disallowed witnesses and documents at impeachment 1. What accountability? We got MAGA storming the Capitol over trump's biggest lie about a stolen election..

Vehement hatred of fascism.

How is that difficult?

He Knew we could NOT trust the Bohemian Lance Cpl

just look at Czechoslovakia a Big Country one day and Nothing the next

If Hitler wanted peace he should have stopped Bombing the UK in 1940 as a Gesture of Goodwill but he never did

saying and Doing the Opposite is not a Peace offering

Churchill stick to his Guns from day One Unconditional Surender

remember Sir Winston Spencer Churchill was only Prime minister

May 1940, he became Prime Minister, 8 months after Chamberlin Failed with appeasement

after the Nazis had Bombed the UK from 16 October 1939

even Konrad Adinhauer  agreed with Churchill and Konrad went to Prison for speaking against the Lance Cpl

He could see the proverbial writing on the wall and rightly mistrusted the Germans

He was a warmonger who was trying to drag Germany into a war.

When Chamberlain returned home from the Munich Conference, he was revered as a hero for doing what any good leader should do - settle differences peacefully and avoid a war.

Churchill berated Chamberlain for "backing down" and because he was a popular figure, many others in Britain sided with him.

When Chamberlain declared war on Germany in 1939 he was acting according to the general consensus of the people who had been greatly influenced by Churchill's obsession to destroy Germany.

Churchill had his faults but he wasn't an idiot.  He wasn't fooled by Hitler pretending to have peaceful aims.  The thing is that it wasn't any great feat of intuition or detective work, all one had to do was read Mein Kampf and it was clear what Hitler's intentions were.