Why did it increase its involvement into the 1970s?

The increase in involvement during the 1970s can be attributed to several factors, including rising geopolitical tensions, particularly during the Cold War, and the need to respond to various global crises. Additionally, the economic challenges of the decade, such as the oil crisis and inflation, prompted governments and organizations to take more active roles in international affairs. Furthermore, social movements and domestic pressures in many countries led to a push for greater engagement in both foreign and domestic policies.