Do you agree that Lee Kuan Yew played the most important role in Singapore's merger with Malaya in 1963?

After Malayan Prime Minister Tunku Abdul Rahman proposed the formation of a federation which would include Malaya, Singapore, Sabah and Sarawak in 1961, Lee began to campaign for a merger with Malaysia to end British colonial rule. He used the results of a referendum held on 1 September 1962, in which 70% of the votes were cast in support of his proposal, to demonstrate that the people supported his plan. During Operation Coldstore, Lee crushed the pro-communist factions who were strongly opposing the merger and who were allegedly involved in subversive activities.