Answer:
Britian has invaded/conquered 22 countries
Step-by-step explanation:
The countries:
Andorra
Burundi
Belarus
Bolivia
Central African Republic
Chad
Côte d'Ivoire
Republic of the Congo
Guatemala
Kyrgyzstan
Liechtenstein
Luxembourg
Monaco
Marshall Islands
Mali
Mongolia
Paraguay
São Tomé and Príncipe
Sweden
Tajikistan
Uzbekistan
Vatican City