War on the Rocks is an excellent source for news on and informed demi-official discussions of current military topics.
FDD’s Long War Journal is another excellent source for news on and informed demi-official discussions of current military topics.
The Center for Strategic and International Studies gives analyses of international strategic issues, particularly useful for conflicts as they occur.
RAND Corporation presents excellent and wide-ranging studies of contemporary strategic policy and military forces, often surprisingly detailed.
Carnegie Endowment for International Peace provides writings on international strategic issues and conflicts, from a liberal perspective.
International Crisis Group provides analyses of international strategic issues and conflicts, particularly their internal political dimensions.