top 10 countries with the highest defence expenditure in the world 

As of my knowledge cutoff in September 2021, the top 10 countries with the highest defense expenditure in the world were:

United States - $778 billion

China - $252 billion

India - $72.9 billion

Russia - $61.7 billion

Saudi Arabia - $59.6 billion

United Kingdom - $57 billion

Germany - $53.1 billion

Japan - $47.6 billion

South Korea - $45.7 billion

France - $41.5 billion

Please note that defense expenditures can fluctuate depending on various economic and political factors, and these figures may have changed since my knowledge cutoff date.