The breed selection of military and police dogs usually depends on a variety of factors, including work requirements, adaptability, training ability, etc. Here are some common breeds used for military and police dogs:

German Shepherd: This is a smart dog , brave and loyal dog breeds, often used for patrol, search, explosion protection and other tasks.

Labrador Retriever: Known for its gentleness, friendliness and keen sense of smell, it is suitable for search and rescue, drug and explosive detection and other work.

Belgian Malinois: A strong and agile dog breed, often used in military and police fields, such as anti-terrorism, tracking, etc.

Rottweiler: powerful, brave and fearless, often used for protection and patrol work.

Doberman Pinscher: smart and agile, suitable for vigilance, pursuit and protection.

Springer Spaniel: has a good sense of smell and search ability, and is often used for sniffing and search tasks.