Complex sentence: Grigory Logninov claimed in April 2006 that the SCO has no plans to become a military bloc; nonetheless he argued that the increased threats of "terrorism, extremism and separatism" make necessary a full-scale involvement of armed forces.
Split into simpler sentences: Grigory Logninov claimed in April 2006 that the SCO has no plans to become a military bloc. Nonetheless he argued that the increased threats of "terrorism, extremism and separatism" make necessary a full-scale involvement of armed forces.