The national self-interest dictated to Jawaharlal Nehru a policy of non-alignment, which in essence meant keeping an independence of policy, not aligning with power blocs or making pre-commitments, keeping our options open, not taking decisions on pre-conceived notions, and judging each issue on its merits.
The peritoneum is a continuous transparent membrane which lines the abdominal cavity and covers the abdominal organs (or viscera). It acts to support the viscera, and provides a pathway for blood vessels and lymph.
The pericardium is in the thoracic cavity and partially surrounds the heart. The heart is also supported by parietal and visceral pericardium. These all are serous membranes. Serous membranes secrete a watery fluid that lubricates and helps minimize friction between organs and membranes.