1. The process of increasing military capabilities, resources, or infrastructure
The government announced a defense expansion to strengthen national security.
O governo anunciou uma expansão da defesa para fortalecer a segurança nacional.
2. An increase in spending or investment in military and defense systems
The defense expansion included new weapons procurement and base construction.
A expansão da defesa incluiu aquisição de novas armas e construção de bases.
3. Growth in the scope or scale of defensive operations or military presence
The regional defense expansion raised concerns among neighboring countries.
A expansão regional da defesa levantou preocupações entre países vizinhos.