Because if the other contending powers know that we will not get involved in a war and the worst we will do is sanction , then they won't hesitate to make a move elsewhere.

For example , China doesn't want to invade America , they would rather just take over all of Asia.

Russia too. They would rather begin pushing deeper into the Caucuses , which technically they've already began doing by getting Armenia to ceasefire and then sending in their "peacekeeping" forces. Plus open a military front with Europe against Ukraine and Moldova.

India just began exchanging artillery fire with Pakistan last night too. On their 'Festival of Lights' holiday.

This stuff has been building and unfolding for a while but the only time we ever hear about it is when they get a ceasefire that barely lasts a week or a peace treaty that's not really a peace treaty.

We don't ever hear about the fighting that happens and has been happening.