A little knowledge. An empire of 29.

Every comparison uses this expedition’s original data and rules. “Would win” describes this matchup only; a different choice would change the later journey.

21. 21
    Round 21Won27 countries · 1 life left

    MauritaniavsTajikistan

    Area: 1,030,700 vs 144,100 km² · Higher wins ↑

    Conquered Tajikistan.

    Other category comparisons 3 other winning choices

    All eight categories for Mauritania against Tajikistan

    Category	Mauritania	Tajikistan	Result
    Areakm² · Higher wins ↑ · Chosen	1,030,700	144,100	Would win
    Populationpeople · Higher wins ↑	5,022,441	10,389,799	Would lose
    Wealth per personint’l $ · Higher wins ↑	6,972	4,968	Would win
    Densityper km² · Higher wins ↑	4.9	72.1	Would lose
    Highest peakm · Higher wins ↑	915	7,495	Would lose
    Coastlinekm · Higher wins ↑	754	0	Would win
    Flag colourscolours · Higher wins ↑	3	4	Would lose
    Proximity to equatorfrom the equator · Closer wins ↓	19.4° N	38.3° N	Would win

22. 22
    Round 22Won28 countries · 1 life left

    LuxembourgvsCroatia

    Wealth per person: 152,596 vs 47,760 int’l $ · Higher wins ↑

    Conquered Croatia.

    Other category comparisons 1 other winning choice

    All eight categories for Luxembourg against Croatia

    Category	Luxembourg	Croatia	Result
    Areakm² · Higher wins ↑	2,586	56,594	Would lose
    Populationpeople · Higher wins ↑	666,430	3,859,686	Would lose
    Wealth per personint’l $ · Higher wins ↑ · Chosen	152,596	47,760	Would win
    Densityper km² · Higher wins ↑	257.7	68.2	Would win
    Highest peakm · Higher wins ↑	559	1,831	Would lose
    Coastlinekm · Higher wins ↑	0	5,835	Would lose
    Flag colourscolours · Higher wins ↑	3	6	Would lose
    Proximity to equatorfrom the equator · Closer wins ↓	49.7° N	45.8° N	Would lose

23. 23
    Round 23Won29 countries · 1 life left

    GreecevsBelgium

    Proximity to equator: 39.8° N vs 50.8° N from the equator · Closer wins ↓

    Conquered Belgium.

    Other category comparisons 3 other winning choices

    All eight categories for Greece against Belgium

    Category	Greece	Belgium	Result
    Areakm² · Higher wins ↑	131,957	30,528	Would win
    Populationpeople · Higher wins ↑	10,407,351	11,779,946	Would lose
    Wealth per personint’l $ · Higher wins ↑	42,614	72,630	Would lose
    Densityper km² · Higher wins ↑	78.9	385.9	Would lose
    Highest peakm · Higher wins ↑	2,917	694	Would win
    Coastlinekm · Higher wins ↑	13,676	66.5	Would win
    Flag colourscolours · Higher wins ↑	2	3	Would lose
    Proximity to equatorfrom the equator · Closer wins ↓ · Chosen	39.8° N	50.8° N	Would win

24. 24
    Round 24Won30 countries · 1 life left

    Guinea-BissauvsPortugal

    Proximity to equator: 12.1° N vs 40.7° N from the equator · Closer wins ↓

    Conquered Portugal.

    Other category comparisons 0 other winning choices

    All eight categories for Guinea-Bissau against Portugal

    Category	Guinea-Bissau	Portugal	Result
    Areakm² · Higher wins ↑	36,125	92,090	Would lose
    Populationpeople · Higher wins ↑	2,153,339	10,578,174	Would lose
    Wealth per personint’l $ · Higher wins ↑	2,956	49,800	Would lose
    Densityper km² · Higher wins ↑	59.6	114.9	Would lose
    Highest peakm · Higher wins ↑	277	2,351	Would lose
    Coastlinekm · Higher wins ↑	350	1,793	Would lose
    Flag colourscolours · Higher wins ↑	4	6	Would lose
    Proximity to equatorfrom the equator · Closer wins ↓ · Chosen	12.1° N	40.7° N	Would win

25. 25
    Round 25Lost29 countries · 0 lives left

    LibyavsAlgeria

    Area: 1,759,540 vs 2,381,740 km² · Higher wins ↑

    Returned to the world: Libya.

    Other category comparisons 3 other winning choices

    All eight categories for Libya against Algeria

    Category	Libya	Algeria	Result
    Areakm² · Higher wins ↑ · Chosen	1,759,540	2,381,740	Would lose
    Populationpeople · Higher wins ↑	7,305,659	46,164,219	Would lose
    Wealth per personint’l $ · Higher wins ↑	13,858	16,838	Would lose
    Densityper km² · Higher wins ↑	4.2	19.4	Would lose
    Highest peakm · Higher wins ↑	2,267	2,908	Would lose
    Coastlinekm · Higher wins ↑	1,770	998	Would win
    Flag colourscolours · Higher wins ↑	4	3	Would win
    Proximity to equatorfrom the equator · Closer wins ↓	26.1° N	27.4° N	Would win