Complex sentence: In 1918, he contacted the Russian leaders Troinovski and Angelica Balabanova, the First general Secretary of the Communist International; in December he dissolved the Berlin Committee, arranged for a secret meeting of Indian revolutionaries in Berlin, in May 1919.
Split into simpler sentences: In 1918, he contacted the Russian leaders Troinovski and Angelica Balabanova, the First general Secretary of the Communist International. In December, he dissolved the Berlin Committee, and arranged for a secret meeting of Indian revolutionaries in Berlin, in May 1919.