- As Trump enters the final year of his term in office, the US faces mounting national security threats on multiple fronts.
- Russia remains the most urgent threat, according to some experts, with its interference in elections and expanding weapons programs.
- In the Middle East, tensions between Iran hit boiling point in January on the back of a US airstrike on a senior Iranian general, the consequences of which are still unclear.
- Chinese leaders are gearing up their bid to strengthen the might of the People's Liberation Army, and expand China's influence beyond its borders.
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As President Donald Trump moves into the final year of his first term in office, the US faces mounting threats to its national security on several fronts.
The threats range from a revanchist Russia seeking to splinter the West and China pouring its growing wealth into expanding its military might, to ISIS in lawless regions around the world seeking to commit devastating atrocities against targets in the West.
Below, Business Insider looks at some of the key challenges in the year ahead, based on leading think tanks and our own analysis.