Chaim Weizmann as President of Israel. Chaim Weizmann and his family lived in Manchester for about 30 years (1904–1934), although they temporarily lived at 16 Addison Road in London during World War I. While in Britain, he was known by many as Charles Weizmann, a name under which he registered about 100 research patents. At the end of World War II, it was discovered that the SS had compiled a list in 1940 of over 2,800 people living in Britain, which included Weizmann, who were to have been immediately arrested after an invasion of Britain had the ultimately abandoned Operation Sea Lion
Chaim Weizmann in his autobiography that the failure of the international Zionist movement (between the wars) to encourage all Jews to act decisively and efficiently in great enough numbers to migrate to the Jerusalem area was the real cause for the call for a Partition deal. A deal on Partition was first formally mentioned in 1936 but not finally implemented until 1948. Again, Weizmann blamed the Zionist movement for not being adequate during the best years of the British Mandate. At the outbreak of war in Europe in 1939, Weizmann was appointed as an Honorary adviser to the British Ministry of Supply,